XML 35 R22.htm IDEA: XBRL DOCUMENT
v3.7.0.1

FOREIGN SALES AND SIGNIFICANT CUSTOMERS (Notes) | 12 Months Ended
--- | ---
Jun. 30, 2017
Foreign Sales and Significant Customers [Abstract] |
Foreign Sales and Significant Customers | The Company’s net foreign sales amounted to $8,089,122 during 2017 and $10,504,583 during 2016. The Company’s sales by country were as follows:
|  | 2017 |  | 2016
United States |  | $ | 15,965,159 |  |  | $ | 15,496,763 |
People's Republic of China |  | 2,332,704 |  |  | 969,848 |
Czech Republic |  | 1,107,555 |  |  | 1,231,731 |
Sweden |  | 1,056,746 |  |  | 4,322,582 |
Malaysia |  | 647,707 |  |  | 669,782 |
Canada |  | 547,745 |  |  | 400,672 |
Russian Federation |  | 522,080 |  |  | 125,362 |
All other countries |  | 1,874,585 |  |  | 2,784,606 |
Net sales |  | $ | 24,054,281 |  |  | $ | 26,001,346 |
Sales during 2017 and 2016 to the Company's five largest customers, which are generally large national retailers or foreign distributors and original equipment manufacturers, represented approximately 45% and 47% of the Company's net sales, respectively. Included in these percentages were net sales to a single United States customer which represented approximately 14% and 11% of the Company's net sales during 2017 and 2016, respectively. Net sales to a single Scandinavian distributor represented approximately 17% of the Company's net sales during 2016.

X
- Definition Foreign Sales and Significant Customers [Abstract] + References No definition available. + Details
Name: | koss_ForeignSalesAndSignificantCustomersAbstract
Namespace Prefix: | koss_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Foreign Sales and Significant Customers [Text Block] + References No definition available. + Details
Name: | koss_ForeignSalesandSignificantCustomersTextBlock
Namespace Prefix: | koss_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration