| Document Information Statement | Feb. 03, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Document Period End Date | Feb. 3, 2022 |
| Entity Registrant Name | Koss Corporation |
| Entity Incorporation, State or Country Code | DE |
| Entity File Number | 0-3295 |
| Entity Tax Identification Number | 39-1168275 |
| Entity Address, Address Line One | 4129 North Port Washington Avenue |
| Entity Address, City or Town | Milwaukee |
| Entity Address, State or Province | WI |
| Entity Address, Postal Zip Code | 53212 |
| City Area Code | 414 |
| Local Phone Number | 964-5000 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, $0.005 par value per share |
| Trading Symbol | KOSS |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | false |
| Entity Central Index Key | 0000056701 |
| Amendment Flag | false |
