XML 14 R2.htm IDEA: XBRL DOCUMENT
v3.25.2

Pay vs Performance Disclosure - USD ($) | 12 Months Ended
--- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2023
Pay vs Performance Disclosure [Line Items] |  |  |
Pay vs Performance Disclosure, Table |
Year |  | Summary Compensation Table Total for PEO(1) |  | Compensation Actually Paid to PEO(2) |  | Average Summary Compensation Table Total for Non-PEO Named Executive Officers(3) |  | Average Compensation Actually Paid to Non-PEO Named Executive Officers(4) |  | Value of Initial Fixed $100 Investment Based on Total Shareholder Return(5) |  | Net Income (Loss)(6)
2025 |  | 379,509 |  | 572,037 |  | 278,614 |  | 398,944 |  | 73.4 |  | (874,831)
2024 |  | 383,817 |  | 424,797 |  | 288,134 |  | 320,072 |  | 64.0 |  | (950,911)
2023 |  | 703,567 |  | 820,892 |  | 280,700 |  | 356,514 |  | 51.7 |  | 8,319,212
(1)Michael J. Koss (our Chairman of the Board and CEO) was the PEO for all years shown. The amounts reflect the total compensation reported for our PEO in the “Total” column of the Summary Compensation Table for each corresponding year. (2)The amounts reported represent the compensation actually paid to the PEO, computed in accordance with Item 402(v) of Regulation S-K. In accordance with Item 402(v) of Regulation S-K, below are the adjustments made to the amount reported for our PEO in column (1) above for each year to arrive at compensation actually paid to our PEO during each year shown. |  |
PEO Name | Michael J. Koss |  |
PEO Total Compensation Amount | $ 379,509 | $ 383,817 | $ 703,567
PEO Actually Paid Compensation Amount | 572,037 | 424,797 | 820,892
Non-PEO NEO Average Total Compensation Amount | 278,614 | 288,134 | 280,700
Non-PEO NEO Average Compensation Actually Paid Amount | 398,944 | 320,072 | 356,514
Total Shareholder Return Amount | 73.4 | 64.0 | 51.7
Net (loss) income | $ (874,831) | $ (950,911) | $ 8,319,212
Named Executive Officers, Footnote | Michael J. Koss (our Chairman of the Board and CEO) was the PEO for all years shown. The amounts reflect the total compensation reported for our PEO in the “Total” column of the Summary Compensation Table for each corresponding year. |  |
Additional 402(v) Disclosure | The amounts reported represent the compensation actually paid to the PEO, computed in accordance with Item 402(v) of Regulation S-K. In accordance with Item 402(v) of Regulation S-K, below are the adjustments made to the amount reported for our PEO in column (1) above for each year to arrive at compensation actually paid to our PEO during each year shown. |  |
Adjustment To PEO Compensation, Footnote | This column represents the adjustment to equity awards granted in prior years to arrive at “compensation actually paid” to Mr. Koss for 2025 (“Subject Year”). The adjusted amount is determined by adding (or subtracting, as applicable) the following: (i) the year-end fair value of any equity awards granted in the Subject Year that are outstanding and unvested as of the end of the Subject Year; (ii) the amount of change as of the end of the Subject Year (from the end of the prior fiscal year) in the fair value of any awards granted in prior years that are outstanding and unvested as of the end of the Subject Year; (iii) for awards that are granted and vest in the Subject Year, the fair value as of the vesting date; (iv) for awards granted in prior years that vest in the Subject Year, the amount equal to the change as of the vesting date (from the end of the prior fiscal year) in the fair value; (v) for awards granted in prior years that are determined to fail to meet the applicable vesting conditions during the Subject Year, a deduction for the amount equal to the fair value at the end of the prior fiscal year; and (vi) the dollar value of any dividends or other earnings paid on stock or option awards in the Subject Year prior to the vesting date that are not otherwise reflected in the fair value of such award or included in any other component of total compensation for the Subject Year. The valuation assumptions used to calculate fair values did not materially differ from those disclosed at the time of grant. The amounts added or subtracted to determine the adjusted amount are as follows: |  |
Adjustment to Non-PEO NEO Compensation Footnote | This column represents the adjustment to equity awards granted in prior years to arrive at “compensation actually paid” to each NEO (excluding Mr. Koss) for that year, which is then averaged to determine the average “compensation actually paid” to the NEOs (excluding Mr. Koss) for that year. The adjustment is determined using the same methodology described above in Note 2(c). The amounts added or subtracted to determine the adjusted average amount are as follows: |  |
Compensation Actually Paid vs. Total Shareholder Return | Header Footer Header |  |
Compensation Actually Paid vs. Net Income | Footer . |  |
Non-PEO NEO [Member] | Year End Fair Value Of Equity Awards Granted In Year [Member] |  |  |
Pay vs Performance Disclosure [Line Items] |  |  |
Adjustment to Compensation, Amount |  |  |
Non-PEO NEO [Member] | Year Over Year Change In Fair Value Of Outstanding And Unvested Equity Awards At Fiscal Year End Granted In Prior Years [Member] |  |  |
Pay vs Performance Disclosure [Line Items] |  |  |
Adjustment to Compensation, Amount |  |  |
Non-PEO NEO [Member] | Fair Value As Of Vesting Date Of Equity Awards Granted And Vested In Year [Member] |  |  |
Pay vs Performance Disclosure [Line Items] |  |  |
Adjustment to Compensation, Amount |  |  |
Non-PEO NEO [Member] | Change In Fair Value Of Equity Awards Granted In Prior Years That Vested In Year [Member] |  |  |
Pay vs Performance Disclosure [Line Items] |  |  |
Adjustment to Compensation, Amount | 120,330 |  |
Non-PEO NEO [Member] | Fair Value At End Of Prior Year Of Equity Awards That Failed To Meet Vesting Conditions In Year [Member] |  |  |
Pay vs Performance Disclosure [Line Items] |  |  |
Adjustment to Compensation, Amount |  |  |
Non-PEO NEO [Member] | Value of Dividends or Other Earnings Paid on Stock or Option Awards not Otherwise Reflected in Fair Value or Total Compensation in the Summary Compensation Table for the Year [Member] |  |  |
Pay vs Performance Disclosure [Line Items] |  |  |
Adjustment to Compensation, Amount |  |  |
Non-PEO NEO [Member] | Reported Summary Compensation Table Value [Member] |  |  |
Pay vs Performance Disclosure [Line Items] |  |  |
Adjustment to Compensation, Amount |  |  |
Non-PEO NEO [Member] | Adjusted Value Of Equity Awards [Member] |  |  |
Pay vs Performance Disclosure [Line Items] |  |  |
Adjustment to Compensation, Amount | 120,330 |  |
PEO [Member] | Year End Fair Value Of Equity Awards Granted In Year [Member] |  |  |
Pay vs Performance Disclosure [Line Items] |  |  |
Adjustment to Compensation, Amount |  |  |
PEO [Member] | Year Over Year Change In Fair Value Of Outstanding And Unvested Equity Awards At Fiscal Year End Granted In Prior Years [Member] |  |  |
Pay vs Performance Disclosure [Line Items] |  |  |
Adjustment to Compensation, Amount |  |  |
PEO [Member] | Fair Value As Of Vesting Date Of Equity Awards Granted And Vested In Year [Member] |  |  |
Pay vs Performance Disclosure [Line Items] |  |  |
Adjustment to Compensation, Amount |  |  |
PEO [Member] | Change In Fair Value Of Equity Awards Granted In Prior Years That Vested In Year [Member] |  |  |
Pay vs Performance Disclosure [Line Items] |  |  |
Adjustment to Compensation, Amount | 192,528 |  |
PEO [Member] | Fair Value At End Of Prior Year Of Equity Awards That Failed To Meet Vesting Conditions In Year [Member] |  |  |
Pay vs Performance Disclosure [Line Items] |  |  |
Adjustment to Compensation, Amount |  |  |
PEO [Member] | Value of Dividends or Other Earnings Paid on Stock or Option Awards not Otherwise Reflected in Fair Value or Total Compensation in the Summary Compensation Table for the Year [Member] |  |  |
Pay vs Performance Disclosure [Line Items] |  |  |
Adjustment to Compensation, Amount |  |  |
PEO [Member] | Reported Summary Compensation Table Value [Member] |  |  |
Pay vs Performance Disclosure [Line Items] |  |  |
Adjustment to Compensation, Amount |  |  |
PEO [Member] | Adjusted Value Of Equity Awards [Member] |  |  |
Pay vs Performance Disclosure [Line Items] |  |  |
Adjustment to Compensation, Amount | $ 192,528 |  |

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v + Details
Name: | ecd_Additional402vDisclosureTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToNonPeoNeoCompFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_AdjToPeoCompFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph ii + Details
Name: | ecd_CompActuallyPaidVsNetIncomeTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 5 -Subparagraph i + Details
Name: | ecd_CompActuallyPaidVsTotalShareholderRtnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_NamedExecutiveOfficersFnTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iii + Details
Name: | ecd_NonPeoNeoAvgCompActuallyPaidAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph ii + Details
Name: | ecd_NonPeoNeoAvgTotalCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 1 + Details
Name: | ecd_PayVsPerformanceDisclosureLineItems
Namespace Prefix: | ecd_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iii + Details
Name: | ecd_PeoActuallyPaidCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 3 + Details
Name: | ecd_PeoName
Namespace Prefix: | ecd_
Data Type: | xbrli:normalizedStringItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph ii + Details
Name: | ecd_PeoTotalCompAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 1 + Details
Name: | ecd_PvpTableTextBlock
Namespace Prefix: | ecd_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-K -Number 229 -Section 402 -Subsection v -Paragraph 2 -Subparagraph iv + Details
Name: | ecd_TotalShareholderRtnAmt
Namespace Prefix: | ecd_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-6 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 9 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-9 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 805 -SubTopic 60 -Name Accounting Standards Codification -Section 65 -Paragraph 1 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147476176/805-60-65-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 323 -Name Accounting Standards Codification -Section 65 -Paragraph 2 -Subparagraph (g)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478666/740-323-65-2 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(20)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 323 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147481687/323-10-50-3 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 28 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-28 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482765/220-10-50-6 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-3 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-1 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 65 -Paragraph 1 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480175/815-40-65-1 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 8 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-8 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-11 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-11 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Topic 250 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483443/250-10-50-4 Reference 17: http://www.xbrl.org/2003/role/exampleRef -Topic 946 -SubTopic 830 -Name Accounting Standards Codification -Section 55 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479168/946-830-55-10 Reference 18: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section 45 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479105/946-220-45-7 Reference 19: http://www.xbrl.org/2003/role/disclosureRef -Topic 944 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(18)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147477250/944-220-S99-1 Reference 20: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(9)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1 Reference 21: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-09(1)(d)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-3 Reference 22: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(i)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 23: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(ii)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 24: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iii)(A)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 25: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iv)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 26: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(5)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1A Reference 27: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(i)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 28: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(A)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 29: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iii)(B)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 30: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iv)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 31: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(5)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480097/470-10-S99-1B Reference 32: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 60B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482689/260-10-45-60B Reference 33: http://www.xbrl.org/2003/role/disclosureRef -Topic 205 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 7 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483499/205-20-50-7 Reference 34: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 Reference 35: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1A Reference 36: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 1B -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-1B Reference 37: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(22)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478524/942-220-S99-1 + Details
Name: | us-gaap_NetIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ecd_ExecutiveCategoryAxis=ecd_NonPeoNeoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=koss_YearEndFairValueOfEquityAwardsGrantedInYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=koss_YearOverYearChangeInFairValueOfOutstandingAndUnvestedEquityAwardsAtFiscalYearEndGrantedInPriorYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=koss_FairValueAsOfVestingDateOfEquityAwardsGrantedAndVestedInYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=koss_ChangeInFairValueOfEquityAwardsGrantedInPriorYearsThatVestedInYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=koss_FairValueAtEndOfPriorYearOfEquityAwardsThatFailedToMeetVestingConditionsInYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=koss_ValueOfDividendsOrOtherEarningsPaidOnStockOrOptionAwardsNotOtherwiseReflectedInFairValueOrTotalCompensationInSummaryCompensationTableForYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=koss_ReportedSummaryCompensationTableValueMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_AdjToCompAxis=koss_AdjustedValueOfEquityAwardsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ecd_ExecutiveCategoryAxis=ecd_PeoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |