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PRODUCT SOFTWARE DEVELOPMENT EXPENDITURES - NARRATIVE (Details) (USD $) | 12 Months Ended
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Jun. 30, 2013
Capitalized Computer Software, Net [Abstract] |
Capitalized computer software, amortization period | 3 years
Expected future amortization of capitalized software, FY2014 | $ 1,458,159
Expected future amortization of capitalized software, FY2015 | $ 1,215,132

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- Definition Capitalized Computer Software, Amortization Period + References No definition available. + Details
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- Definition Capitalized Software, Expected Future Amortization in Year Three + References No definition available. + Details
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Namespace Prefix: | koss_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Capitalized Software, Expected Future Amortization in Year Two + References No definition available. + Details
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Namespace Prefix: | koss_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration