Document and Entity Information Statement [Table] Statement [Line Items] Statement Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Current Fiscal Year End Date Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Period Focus Consolidated Balance Sheets Assets [Abstract] Assets Assets, Current [Abstract] Current assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of period Cash and cash equivalents at beginning of period Cash and cash equivalents Accounts Receivable, Net, Current Accounts receivable, net of allowance for doubtful accounts of $718 and $471 in 2016 and 2015, respectively Inventory, Net Inventory Income Taxes Receivable, Current Tax refund receivable The aggregate of the (i) carrying amount as of the balance sheet date of payments made in advance for income and other taxes, which will be charged against earnings within one year or the normal operating cycle, if longer; and (ii) amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences expected to be realized or consumed within one year or operating cycle, if longer. Prepaid Taxes and Deferred Tax Assets (Liabilities) Net Current Prepaid and deferred taxes Prepaid Expense and Other Assets, Current Prepaid expenses and other current assets Assets, Current Total current assets Property, Plant and Equipment, Net Property and equipment, net Total property and equipment, net Intangible Assets, Net (Excluding Goodwill) Intangible assets, net Total Goodwills Balance at the end of the period Balance at the beginning of the period Goodwill Deferred Tax Assets, Gross, Noncurrent Deferred long-term tax assets Other Assets, Noncurrent Other assets Assets Total assets Liabilities and Equity [Abstract] Liabilities and stockholders' equity Liabilities, Current [Abstract] Current liabilities: Accounts Payable, Current Accounts payable Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent, utilities, PTO and accrued bonuses and commissions. It also includes aggregate carrying amount, as of the balance sheet date, of current obligations not separately disclosed in the balance sheet due to materiality considerations. Current liabilities are expected to be paid within one year (or the normal operating cycle, if longer). Accrued Expenses and Other Current Liabilities Accrued expenses and other current liabilities Liability for inventory included in accrued expenses and other current liabilities This element represents the current portion of the profit sharing distributions payable. Profit Sharing Distributions Payable Profit-sharing distributions payable Cash held on behalf of seller for consignment sales. Customer Payables Customer payables Liabilities, Current Total current liabilities Deferred Income Taxes and Other Liabilities, Noncurrent Deferred taxes and other long term liabilities Liabilities Total liabilities Commitments and Contingencies Commitments and contingencies (Note 9 and 19) Stockholders' Equity Attributable to Parent [Abstract] Stockholders' equity: Common Stock, Value, Issued Common stock, $0.001 par value; 120,000,000 shares authorized; 30,742,662 shares issued and outstanding at September 30, 2016; 30,026,223 shares issued and outstanding at September 30, 2015 Additional Paid in Capital, Common Stock Additional paid-in capital Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Retained Earnings (Accumulated Deficit) Retained earnings (accumulated deficit) Stockholders' Equity Attributable to Parent Balance Balance Total stockholders' equity Liabilities and Equity Total liabilities and stockholders' equity Allowance for Doubtful Accounts Receivable, Current Accounts receivable, allowance for doubtful accounts (in dollars) Common Stock, Par or Stated Value Per Share Common stock, par value (in dollars per share) Common Stock, Shares Authorized Common stock, shares authorized Common Stock, Shares, Issued Common stock, shares issued Common Stock, Shares, Outstanding Common stock, shares outstanding Consolidated Statements of Operations Unaudited quarterly consolidated statement of operations Sales Revenue, Goods, Net Revenue Sales Revenue, Services, Net Fee revenue Revenue, Net Revenue from operations Total revenue from operations Costs and Expenses [Abstract] Costs and expenses from operations: Total costs related to goods sold during the reporting period excluding amortization. It also includes the costs of purchasing and transporting property for auction as well as credit card transaction fees also included is the costs for shipping and handling paid by the customers. Cost of Goods Sold, Excluding Amortization Cost of goods sold (excluding amortization) This element represents the disbursement made as per the profit sharing arrangements after deducting the allowable operating expenses. Profit Sharing Distributions Profit-sharing distributions Includes technology expenses which consist primarily of personnel costs related to programming staff who develop and deploy new marketplaces and continuously enhance existing marketplaces. These personnel also develop and upgrade the software systems that support operations, such as sales processing. It also includes operations expenses which consist primarily of operating costs, including buyer relations, shipping logistics and distribution center operating costs. Technology and Operation Technology and operations Sales and marketing expenses include the cost of sales and marketing personnel as well as the cost of marketing and promotional activities. These activities include online marketing campaigns such as paid search advertising. Sales and Marketing Sales and marketing General and Administrative Expense General and administrative Depreciation, Depletion and Amortization, Nonproduction Depreciation and amortization This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, and earn-out payments. Acquisition Costs and Goodwill Impairment Acquisition costs and related fair value adjustments and impairment of goodwill and long-lived assets Gain (Loss) on Disposition of Assets Business disposition loss Loss on sale of assets Costs and Expenses Total costs and expenses Operating Income (Loss) (Loss) income from operations The net amount of other income and expense amounts, the components of which are not separately disclosed on the income statement, resulting from ancillary business-related activities (that is, excluding major activities considered part of the normal operations of the business) also known as other nonoperating income (expense) recognized for the period. Such amounts may include: (a) dividends, (b) interest on securities, (c) net gains or losses on securities, (d) unusual costs, (e) gains or losses on foreign exchange transactions, (f) miscellaneous other income and expense items, and interest on notes payable. Other Nonoperating Income (Expense), Net Interest and other income (expense), net Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest (Loss) income before provision for income taxes (Loss) income before provision for income taxes Income Tax Expense (Benefit) Provision (benefit) for income taxes Total provision Net Income (Loss) Available to Common Stockholders, Basic Net (loss) income Net (loss) income Net (loss) income from operations Earnings Per Share, Basic Basic (loss) earnings per common share Earnings Per Share, Diluted Diluted (loss) earnings per common share Weighted Average Number of Shares Outstanding, Basic Basic weighted average shares outstanding (in shares) Basic weighted average shares outstanding Weighted Average Number of Shares Outstanding, Diluted Diluted weighted average shares outstanding (in shares) Diluted weighted average common shares outstanding Consolidated Statements of Comprehensive (Loss) Income Other Comprehensive Income (Loss), Net of Tax [Abstract] Other comprehensive (loss) income: Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Adjustment, Net of Tax, Portion Attributable to Parent Defined benefit pension plan- unrecognized amounts, net of taxes Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Foreign currency translation Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Other comprehensive (loss), net of taxes Current-period other comprehensive (loss) income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive (loss) income Consolidated Statements of Changes in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity Shares, Issued Balance (in shares) Balance (in shares) Treasury Stock, Value, Acquired, Cost Method Common stock repurchase Total Cash Paid for Shares Purchased Common stock repurchase (in shares) Common stock repurchase (in shares) Total Number of Shares Purchased Treasury Stock, Retired, Cost Method, Amount Common stock retired Treasury Stock, Shares, Retired Common stock retired (in shares) Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Exercise of common stock options and restricted stock Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Exercise of common stock options and restricted stock (in shares) Represents the aggregate of (i) the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation"; and (ii) adjustment to additional paid in capital related to the net effect of excess tax benefits and tax deficiencies associated with an equity-based compensation plan other than an employee stock ownership plan (ESOP). Adjustment to additional paid in capital sharebased compensation requisite service period recognition value and income tax effect from share based compensation net Compensation expense and incremental tax benefit from grant of common stock options and issuance of restricted stock Consolidated Statements of Cash Flows Net Cash Provided by (Used in) Operating Activities [Abstract] Operating activities Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Depreciation, Depletion and Amortization Depreciation and amortization Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Change in fair value of earn out liability Share-based Compensation Stock compensation expense Inventory Write-down Provision (benefit) for inventory allowance Provision for Doubtful Accounts Provision for doubtful accounts Deferred Income Tax Expense (Benefit) Deferred tax expense (benefit) Goodwill and Intangible Asset Impairment Impairment of goodwill and intangible assets Amount of cash inflow/outflow for realized tax provision related to deductible compensation cost reported on the entity's tax return for equity instruments in excess of the compensation cost for those instruments recognized for financial reporting purposes. Excess Tax Cost From Share Based Compensation Operating Activities Incremental tax loss (benefit) from exercise of common stock options and restricted stock Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities: Increase (Decrease) in Accounts Receivable Accounts receivable Increase (Decrease) in Inventories Inventory Represents the combined amount of increase (decrease) of consideration paid in advance for income and other taxes that provide economic benefits in future periods and deferred income tax expense (benefit) pertaining to income (loss) from continuing operations. Increase Decrease In Prepaid Taxes And Deferred Income Tax Expense Benefit Prepaid and deferred taxes Increase (Decrease) in Prepaid Expense and Other Assets Prepaid expenses and other assets Increase (Decrease) in Accounts Payable Accounts payable Increase (Decrease) in Other Accrued Liabilities Accrued expenses and other current liabilities The Net change in disbursement made as per the profit sharing arrangements after deducting the allowable operating expenses. Increase (Decrease) in Profit Sharing Distributions Payable Profit-sharing distributions payable The net change during the reporting period in the amount of cash held on behalf of the sellers in the case of consignment sales transactions. Increase (Decrease) in Customer Payables Customer payables Increase (Decrease) in Other Operating Liabilities Other liabilities Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net cash provided by operating activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Investing activities The cash flow associated with divestiture. Payment On Divestiture Cash paid in divestiture This element represents the cash paid on account of acquisitions for the goodwill and intangible assets as a consideration and the change in value due to foreign currency translation for acquisition of business Increase In Goodwill And Intangibles And Cash Paid For Acquisitions Cash paid for acquisitions and increase in intangibles Payments to Acquire Property, Plant, and Equipment Purchases of property and equipment, including capitalized software Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net cash used in investing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Financing activities Payments for Repurchase of Common Stock Repurchases of common stock Proceeds from Stock Options Exercised Proceeds from exercise of common stock options (net of tax) Excess Tax Benefit from Share-based Compensation, Financing Activities Incremental tax benefit from exercise of common stock options and restricted stock Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net cash (used in) provided by financing activities Effect of Exchange Rate on Cash and Cash Equivalents Effect of exchange rate differences on cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Net increase (decrease) in cash and cash equivalents Supplemental Cash Flow Information [Abstract] Supplemental disclosure of cash flow information Income Taxes Paid, Net Cash received (paid) for income taxes Organization Nature of Operations [Text Block] Organization Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Summary of Significant Accounting Policies Significant Contracts Schedule of Collaborative Arrangements and Non-collaborative Arrangement Transactions [Table] Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items] Significant Contracts Long-term Contracts or Programs Disclosure [Text Block] Significant Contracts National Electronic Service Association (NESA) Acquisition Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Line Items] National Electronic Service Association (NESA) Acquisition Business Combination Disclosure [Text Block] National Electronic Service Association (NESA) Acquisition Property and Equipment Property, Plant and Equipment Disclosure [Text Block] Property and Equipment Goodwill. Goodwill. Schedule of Goodwill [Table] Goodwill [Line Items] Goodwill Goodwill Disclosure [Text Block] Goodwill Intangible Assets Schedule of Finite-Lived Intangible Assets [Table] Finite-Lived Intangible Assets [Line Items] Intangible Assets Intangible Assets Disclosure [Text Block] Intangible Assets Debt Schedule of Long-term Debt Instruments [Table] Debt Instrument [Line Items] Debt Debt Disclosure [Text Block] Debt Commitments Commitments and Contingencies Disclosure [Text Block] Commitments 401(k) Benefit Plan Defined Contribution Plan [Table] Defined Contribution Plan Disclosure [Line Items] 401(k) Benefit Plan The entire disclosure for an entity's defined contribution plan. Defined Contribution Plan Disclosure [Text Block] 401(k) Benefit Plan Income Taxes Income Tax Disclosure [Text Block] Income Taxes Equity Transactions Shareholders' Equity and Share-based Payments [Text Block] Equity Transactions Fair Value Measurement Fair Value Disclosures [Text Block] Fair Value Measurement Defined Benefit Pension Plan Schedule of Defined Benefit Plans Disclosures [Table] Defined Benefit Plan Disclosure [Line Items] Defined benefit pension plan The entire disclosure for an entity's defined benefit pension. Defined Benefit Pension Plan Text Block Disclosure [Text Block] Defined Benefit Pension Plan Guarantees Guarantees [Text Block] Guarantees Business Realignment Expenses Restructuring and Related Activities Disclosure [Text Block] Business Realignment Expenses The entire disclosure of settlements agreed upon between the company and third parties, related parties, employees and/or affiliates. Termination of the Wal-Mart Agreement The entire disclosure of settlements for disputes between the company and any third party, related party, employee or affiliate. Settlement Text Block Termination of the Wal-Mart Agreement Business Disposition Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Business Disposition Legal Proceedings Legal Matters and Contingencies [Text Block] Legal Proceedings Quarterly Results (Unaudited) Quarterly Financial Data [Abstract] Quarterly Results (Unaudited) Quarterly Financial Information [Text Block] Quarterly Results (Unaudited) SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS Valuation and Qualifying Accounts Disclosure [Table] Valuation and Qualifying Accounts Disclosure [Line Items] Valuation and qualifying accounts Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS Use of Estimates, Policy [Policy Text Block] Use of Estimates Consolidation, Policy [Policy Text Block] Principles of Consolidation and Basis of Presentation Business Combinations Policy [Policy Text Block] Business Combinations Cash and Cash Equivalents, Policy [Policy Text Block] Cash and Cash Equivalents Trade and Other Accounts Receivable, Policy [Policy Text Block] Accounts Receivable Inventory, Policy [Policy Text Block] Inventory Property, Plant and Equipment, Policy [Policy Text Block] Property and Equipment Intangible Assets, Finite-Lived, Policy [Policy Text Block] Intangible Assets Disclosure of accounting policy for the impairment and disposal of long-lived assets including other intangible assets but excluding goodwill. Impairment or Disposal of Long Lived Assets Including Intangible Assets but Excluding Goodwill [Policy Text Block] Impairment of Long-Lived Assets