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ACCOUNTS RECEIVABLE, NARRATIVE (Details) (USD $) | 12 Months Ended
--- | ---
Jun. 30, 2014 Rate | Jun. 30, 2013 Rate
Receivables [Abstract] |  |
Proceeds from the settlement of the lawsuit against a third party, included in accounts receivable | $ 0 | $ 8,500,000
Trade accounts receivable, two largest customers, percentage | 11.00% | 20.50%
Recoveries of previously written-off accounts receivable | $ 112,417 | $ 0
Foreign trade accounts receivable, denominated in US dollars, percentage | 14.00% | 16.00%

X
- Definition Foreign accounts receivable denominated in US dollars + References No definition available. + Details
Name: | koss_ForeignaccountsreceivabledenominatedinUSdollars
Namespace Prefix: | koss_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Gross proceeds from legal settlements included in income for the period, related to unauthorized transactions + References No definition available. + Details
Name: | koss_Gaincontingencygrossproceedsfromlegalsettlements
Namespace Prefix: | koss_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Percent of gross accounts receivable with two largest customers + References No definition available. + Details
Name: | koss_PercentOfGrossAccountsReceivableWithTwoLargestCustomers
Namespace Prefix: | koss_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Amount of recoveries of receivables doubtful of collection that were previously charged off. + References No definition available. + Details
Name: | us-gaap_AllowanceForDoubtfulAccountsReceivableRecoveries
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_ReceivablesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration