XML 38 R26.htm IDEA: XBRL DOCUMENT
v3.10.0.1

UNAUTHORIZED TRANSACTION RELATED RECOVERIES (Tables) | 12 Months Ended
--- | ---
Jun. 30, 2018
Unauthorized Transactions, Costs and Related Recoveries, Net [Abstract] |
Unauthorized Transaction Related Costs and Recoveries | For the fiscal years ended June 30, 2018 and 2017, the costs and recoveries were as follows:
|  | 2018 |  | 2017
Legal fees incurred |  | $ | — |  |  | $ | 77,500 |
Proceeds from asset forfeitures |  | (18,765 | ) |  | (9,952 | )
Unauthorized transaction related (recoveries) costs, net |  | $ | (18,765 | ) |  | $ | 67,548 |

X
- Definition Unauthorized Transactions, Costs and Related Recoveries, Net [Abstract] + References No definition available. + Details
Name: | koss_UnauthorizedTransactionsCostsandRelatedRecoveriesNetAbstract
Namespace Prefix: | koss_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Unauthorized Transactions, Related Costs and Recoveries, net [Table Text Block] + References No definition available. + Details
Name: | koss_UnauthorizedTransactionsRelatedCostsandRecoveriesnetTableTextBlock
Namespace Prefix: | koss_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration