XML 74 R61.htm IDEA: XBRL DOCUMENT
v3.7.0.1

FOREIGN SALES AND SIGNIFICANT CUSTOMERS, SALES BY COUNTRY (Details) - USD ($) | 12 Months Ended
--- | ---
Jun. 30, 2017 | Jun. 30, 2016
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Net sales | $ 24,054,281 | $ 26,001,346
United States |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Net sales | 15,965,159 | 15,496,763
Non-U.S. Countries [Member] |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Net sales | 8,089,122 | 10,504,583
People's Republic of China |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Net sales | 2,332,704 | 969,848
Czech Republic |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Net sales | 1,107,555 | 1,231,731
Sweden |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Net sales | 1,056,746 | 4,322,582
Malaysia |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Net sales | 647,707 | 669,782
Canada |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Net sales | 547,745 | 400,672
Russian Federation |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Net sales | 522,080 | 125,362
All other countries |  |
Revenues from External Customers and Long-Lived Assets [Line Items] |  |
Net sales | $ 1,874,585 | $ 2,784,606

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_RevenuesFromExternalCustomersAndLongLivedAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
Name: | us-gaap_SalesRevenueNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=koss_NonU.S.CountriesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_CN
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_CZ
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_SE
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_MY
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_CA
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=country_RU
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementGeographicalAxis=koss_AllothercountriesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |