SIGNIFICANT ACCOUNTING POLICIES (Notes)	12 Months Ended
Jun. 30, 2012
Accounting Policies [Abstract]
SIGNIFICANT ACCOUNTING POLICIES	SIGNIFICANT ACCOUNTING POLICIES NATURE OF BUSINESS — Koss Corporation (“Koss”) and its former wholly-owned subsidiary (collectively the “Company”), a Delaware corporation, reports its finances as a single reporting segment, as the Company’s principal business line is the design, manufacture and sale of stereo headphones and related accessories. The Company leases its plant and office in Milwaukee, Wisconsin. In addition, the Company has more than 300 domestic dealers and its products are carried by approximately 17,000 domestic retailers and numerous retailers worldwide. International markets are served by domestic sales representatives and a sales office in Switzerland which utilizes independent distributors in several foreign countries. The Company had one subsidiary, Koss Classics Ltd. (“Koss Classics”), which was dissolved in the three months ended September 30, 2011. BASIS OF CONSOLIDATION — The consolidated financial statements include the accounts of Koss and its subsidiary, Koss Classics, which is a wholly-owned subsidiary. All significant intercompany accounts and transactions have been eliminated. REVENUE RECOGNITION — Revenue is recognized by the Company upon shipment of product, which is generally when title passes to the customer, the price is fixed and collectibility is reasonably assured. Provisions for slotting fees, cooperative advertising programs, rebates, sales discounts, estimated returns and allowances, and other estimated costs are provided for in the same period the sales are recorded. These provisions are recorded as a reduction to sales. SHIPPING AND HANDLING FEES AND COSTS — Shipping and handling fees are included in cost of goods sold for all periods. RESEARCH AND DEVELOPMENT — Research and development activities charged to operations amounted to approximately $1,306,000 in fiscal 2012 and $900,000 in fiscal 2011. ADVERTISING COSTS — Advertising costs included within selling, general and administrative expenses in the accompanying consolidated statements of operations were approximately $66,000 in 2012 and $60,000 in 2011. Such costs are expensed as incurred. INCOME TAXES — The Company operates as a C Corporation under the Internal Revenue Code of 1986, as amended (the “Code”). Amounts provided for income tax expense are based on income reported for financial statement purposes and do not necessarily represent amounts currently payable under tax laws. Deferred income tax assets and liabilities are computed annually for differences between the financial statements and tax bases of assets and liabilities that will result in taxable or deductible amounts in the future based on enacted tax laws and rates applicable to the periods in which the differences are expected to affect taxable income. As changes in tax laws or rates are enacted, deferred income tax assets and liabilities are adjusted through the provision for income taxes. The differences relate principally to different methods used for depreciation and amortization for income tax purposes, net operating losses, capitalization requirements of the Code, allowances for doubtful accounts, inventory valuation methods, unauthorized transactions, stock based compensation, warranty reserves, and other income tax related carryforwards. Valuation allowances are established when necessary to reduce deferred income tax assets to the amount expected to be realized. INCOME PER COMMON SHARE — Income per common share is calculated under the provisions of Topic 260 in the Accounting Standards Codification which provides for calculation of “basic” and “diluted” income per share. Basic income per common share includes no dilution and is computed by dividing net income by the weighted average common shares outstanding for the period. Diluted income per common share reflects the potential dilution of securities that could share in the earnings of an entity. CASH AND CASH EQUIVALENTS — The Company considers depository accounts and investments with a maturity at the date of acquisition and expected usage of three months or less to be cash and cash equivalents. The Company maintains its cash on deposit at commercial banks located in the United States of America. The Company periodically has cash balances in excess of insured amounts. The Company has not experienced and does not expect to incur any losses on these deposits. ACCOUNTS RECEIVABLE — Accounts receivable consists of unsecured trade receivables due from customers. An allowance for doubtful accounts is recorded for significant past due receivable balances based on a review of the past due item, general economic conditions and the insurance coverage in place. See Note 3 for additional information on accounts receivable. INVENTORIES — The Company’s inventory was valued at the lower of last-in, first-out (“LIFO”) cost or market. The carrying value of inventory is reviewed for impairment on at least a quarterly basis or more frequently if warranted due to changes in market conditions. See Note 4 for additional information on inventory. EQUIPMENT AND LEASEHOLD IMPROVEMENTS — Equipment and leasehold improvements are stated at cost. Depreciation and amortization is calculated using the straight-line method over the estimated useful lives of the respective assets. Leasehold improvements are amortized using the straight-line method over the shorter of the lease term or the estimated useful life of the asset. Major expenditures for property and equipment and significant renewals are capitalized. Maintenance, repairs and minor renewals are expensed as incurred. When assets are retired or otherwise disposed of, their costs and related accumulated depreciation and amortization are removed from the accounts and any resulting gains or losses are included in operations. PRODUCT SOFTWARE DEVELOPMENT COSTS — The Company follows the guidance of Accounting Standards Codification ("ASC") 985-20 “Costs of Software to be Sold, Leased, or Marketed” when capitalizing software development costs associated with software embedded in or to be incorporated into its products. The cost of purchased software technology is capitalized and stated at the lower of unamortized cost or expected net realizable value. At a minimum, we review for impairment on a quarterly basis. Amortization is being recorded over a three year period or a fixed amount per unit sold, whichever is greater. See Note 6 for additional information. LIFE INSURANCE POLICIES — Life insurance policies are stated at cash surrender value or at the amount the Company would receive in the case of split-dollar arrangements. Increases in cash surrender value are included in selling, general and administrative expenses, which is where the annual premiums are recorded. PRODUCT WARRANTY OBLIGATIONS — Estimated future warranty costs related to products are charged to cost of goods sold during the period the related revenue is recognized. The product warranty liability reflects the Company’s best estimate of probable obligations under those warranties. See Note 10 for additional information on product warranty obligations. DEFERRED COMPENSATION — The Company’s deferred compensation liabilities are for a current and former officer and are calculated based on compensation, years of service and mortality tables. The related expense is calculated using the net present value of the expected payments and is included in selling, general and administrative expenses in the Consolidated Statements of Operations. See Note 11 for additional information on deferred compensation. FAIR VALUE OF FINANCIAL INSTRUMENTS — Cash and cash equivalents, accounts receivable, line of credit and accounts payable approximate fair value based on the short maturity of these instruments. IMPAIRMENT OF LONG-LIVED ASSETS — The Company evaluates the recoverability of the carrying amount of long-lived assets whenever events or changes in circumstances indicate that the carrying amount of an asset may not be fully recoverable. The Company evaluates the recoverability of equipment and leasehold improvements annually or more frequently if events or circumstances indicate that an asset might be impaired. If an asset is considered to be impaired, the impairment to be recognized is measured as the amount by which the carrying amount of the asset exceeds its fair value. Assets to be disposed of are reported at the lower of the carrying amount or fair value less cost to sell. Management determines fair value using a discounted future cash flow analysis or other accepted valuation techniques. Management believes that there has not been any impairment of the Company’s long-lived assets as of June 30, 2012 and 2011. LEGAL COSTS — All legal costs related to litigation are charged to operations as incurred, except settlements, which are expensed when a claim is probable and can be estimated. Recoveries of legal costs are recorded when the amount and items to be paid are confirmed by the insurance company. Proceeds from the settlement of legal disputes are recorded in income when the amounts are determinable and the collection is probable. STOCK-BASED COMPENSATION — The Company has a stock-based employee compensation plan, which is described more fully in Note 14. The Company accounts for stock-based compensation in accordance with ASC 718. Under the fair value recognition provisions of this statement, share-based compensation cost is measured at the grant date based on the fair value of the award and is recognized as expense over the vesting period. USE OF ESTIMATES — The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. RECLASSIFICATIONS — Certain amounts previously reported have been reclassified to conform to the current presentation.

SIGNIFICANT ACCOUNTING POLICIES

NATURE OF BUSINESS — Koss Corporation (“Koss”) and its former wholly-owned subsidiary (collectively the “Company”), a Delaware corporation, reports its finances as a single reporting segment, as the Company’s principal business line is the design, manufacture and sale of stereo headphones and related accessories. The Company leases its plant and office in Milwaukee, Wisconsin. In addition, the Company has more than 300 domestic dealers and its products are carried by approximately 17,000 domestic retailers and numerous retailers worldwide. International markets are served by domestic sales representatives and a sales office in Switzerland which utilizes independent distributors in several foreign countries. The Company had one subsidiary, Koss Classics Ltd. (“Koss Classics”), which was dissolved in the three months ended September 30, 2011.

BASIS OF CONSOLIDATION — The consolidated financial statements include the accounts of Koss and its subsidiary, Koss Classics, which is a wholly-owned subsidiary. All significant intercompany accounts and transactions have been eliminated.

REVENUE RECOGNITION — Revenue is recognized by the Company upon shipment of product, which is generally when title passes to the customer, the price is fixed and collectibility is reasonably assured. Provisions for slotting fees, cooperative advertising programs, rebates, sales discounts, estimated returns and allowances, and other estimated costs are provided for in the same period the sales are recorded. These provisions are recorded as a reduction to sales.

SHIPPING AND HANDLING FEES AND COSTS — Shipping and handling fees are included in cost of goods sold for all periods.

RESEARCH AND DEVELOPMENT — Research and development activities charged to operations amounted to approximately $1,306,000 in fiscal 2012 and $900,000 in fiscal 2011.

ADVERTISING COSTS — Advertising costs included within selling, general and administrative expenses in the accompanying consolidated statements of operations were approximately $66,000 in 2012 and $60,000 in 2011. Such costs are expensed as incurred.

INCOME TAXES — The Company operates as a C Corporation under the Internal Revenue Code of 1986, as amended (the “Code”). Amounts provided for income tax expense are based on income reported for financial statement purposes and do not necessarily represent amounts currently payable under tax laws. Deferred income tax assets and liabilities are computed annually for differences between the financial statements and tax bases of assets and liabilities that will result in taxable or deductible amounts in the future based on enacted tax laws and rates applicable to the periods in which the differences are expected to affect taxable income. As changes in tax laws or rates are enacted, deferred income tax assets and liabilities are adjusted through the provision for income taxes. The differences relate principally to different methods used for depreciation and amortization for income tax purposes, net operating losses, capitalization requirements of the Code, allowances for doubtful accounts, inventory valuation methods, unauthorized transactions, stock based compensation, warranty reserves, and other income tax related carryforwards. Valuation allowances are established when necessary to reduce deferred income tax assets to the amount expected to be realized.

INCOME PER COMMON SHARE — Income per common share is calculated under the provisions of Topic 260 in the Accounting Standards Codification which provides for calculation of “basic” and “diluted” income per share. Basic income per common share includes no dilution and is computed by dividing net income by the weighted average common shares outstanding for the period. Diluted income per common share reflects the potential dilution of securities that could share in the earnings of an entity.

CASH AND CASH EQUIVALENTS — The Company considers depository accounts and investments with a maturity at the date of acquisition and expected usage of three months or less to be cash and cash equivalents. The Company maintains its cash on deposit at commercial banks located in the United States of America. The Company periodically has cash balances in excess of insured amounts. The Company has not experienced and does not expect to incur any losses on these deposits.

ACCOUNTS RECEIVABLE — Accounts receivable consists of unsecured trade receivables due from customers. An allowance for doubtful accounts is recorded for significant past due receivable balances based on a review of the past due item, general economic conditions and the insurance coverage in place. See Note 3 for additional information on accounts receivable.

INVENTORIES — The Company’s inventory was valued at the lower of last-in, first-out (“LIFO”) cost or market. The carrying value of inventory is reviewed for impairment on at least a quarterly basis or more frequently if warranted due to changes in market conditions. See Note 4 for additional information on inventory.

EQUIPMENT AND LEASEHOLD IMPROVEMENTS — Equipment and leasehold improvements are stated at cost. Depreciation and amortization is calculated using the straight-line method over the estimated useful lives of the respective assets. Leasehold improvements are amortized using the straight-line method over the shorter of the lease term or the estimated useful life of the asset. Major expenditures for property and equipment and significant renewals are capitalized. Maintenance, repairs and minor renewals are expensed as incurred. When assets are retired or otherwise disposed of, their costs and related accumulated depreciation and amortization are removed from the accounts and any resulting gains or losses are included in operations.

PRODUCT SOFTWARE DEVELOPMENT COSTS — The Company follows the guidance of Accounting Standards Codification ("ASC") 985-20 “Costs of Software to be Sold, Leased, or Marketed” when capitalizing software development costs associated with software embedded in or to be incorporated into its products. The cost of purchased software technology is capitalized and stated at the lower of unamortized cost or expected net realizable value. At a minimum, we review for impairment on a quarterly basis. Amortization is being recorded over a three year period or a fixed amount per unit sold, whichever is greater. See Note 6 for additional information.

LIFE INSURANCE POLICIES — Life insurance policies are stated at cash surrender value or at the amount the Company would receive in the case of split-dollar arrangements. Increases in cash surrender value are included in selling, general and administrative expenses, which is where the annual premiums are recorded.

PRODUCT WARRANTY OBLIGATIONS — Estimated future warranty costs related to products are charged to cost of goods sold during the period the related revenue is recognized. The product warranty liability reflects the Company’s best estimate of probable obligations under those warranties. See Note 10 for additional information on product warranty obligations.

DEFERRED COMPENSATION — The Company’s deferred compensation liabilities are for a current and former officer and are calculated based on compensation, years of service and mortality tables. The related expense is calculated using the net present value of the expected payments and is included in selling, general and administrative expenses in the Consolidated Statements of Operations. See Note 11 for additional information on deferred compensation.

FAIR VALUE OF FINANCIAL INSTRUMENTS — Cash and cash equivalents, accounts receivable, line of credit and accounts payable approximate fair value based on the short maturity of these instruments.

IMPAIRMENT OF LONG-LIVED ASSETS — The Company evaluates the recoverability of the carrying amount of long-lived assets whenever events or changes in circumstances indicate that the carrying amount of an asset may not be fully recoverable. The Company evaluates the recoverability of equipment and leasehold improvements annually or more frequently if events or circumstances indicate that an asset might be impaired. If an asset is considered to be impaired, the impairment to be recognized is measured as the amount by which the carrying amount of the asset exceeds its fair value. Assets to be disposed of are reported at the lower of the carrying amount or fair value less cost to sell. Management determines fair value using a discounted future cash flow analysis or other accepted valuation techniques. Management believes that there has not been any impairment of the Company’s long-lived assets as of June 30, 2012 and 2011.

LEGAL COSTS — All legal costs related to litigation are charged to operations as incurred, except settlements, which are expensed when a claim is probable and can be estimated. Recoveries of legal costs are recorded when the amount and items to be paid are confirmed by the insurance company. Proceeds from the settlement of legal disputes are recorded in income when the amounts are determinable and the collection is probable.

STOCK-BASED COMPENSATION — The Company has a stock-based employee compensation plan, which is described more fully in Note 14. The Company accounts for stock-based compensation in accordance with ASC 718. Under the fair value recognition provisions of this statement, share-based compensation cost is measured at the grant date based on the fair value of the award and is recognized as expense over the vesting period.

USE OF ESTIMATES — The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

RECLASSIFICATIONS — Certain amounts previously reported have been reclassified to conform to the current presentation.