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v3.24.0.1

Note F - Debt (Details Textual) |  |  |  | 3 Months Ended | 6 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Feb. 13, 2024 USD ($) | Feb. 13, 2024 USD ($) | Aug. 20, 2021 USD ($) | Aug. 18, 2021 USD ($) | Dec. 31, 2024 USD ($) | Sep. 30, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($) | Jun. 30, 2022 USD ($) | Aug. 23, 2021 | Jun. 30, 2021 USD ($) | May 24, 2021 USD ($)
Payments to Acquire Property, Plant, and Equipment, Total |  |  |  |  |  |  | $ 1,707,000 | $ 11,640,000 |  |  |  |
Interest Rate Swap [Member] |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Fixed Interest Rate |  |  |  | 2.40% |  |  |  |  |  | 2.40% |  |
Manufacturing Facility and Warehouse [Member] | Carlsbad, California [Member] |  |  |  |  |  |  |  |  |  |  |  |
Payments to Acquire Property, Plant, and Equipment, Total |  |  | $ 17,500,000 |  |  |  |  |  |  |  |  |
Wells Fargo Bank, N.A. [Member] | Credit Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  |  |  | $ 20,000,000
Debt Instrument Covenant Capital Expenditures Limitation, Amount, Next Twelve Years |  |  |  |  |  |  |  |  | $ 15,000,000 |  | $ 10,000,000 |
Long-Term Debt |  |  |  |  |  |  | 0 |  |  |  |  |
Wells Fargo Bank, N.A. [Member] | Credit Agreement [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Covenant Capital Expenditures Limitation, Amount, Next Twelve Years |  |  |  |  |  |  | 7,500,000 |  |  |  |  |
Wells Fargo Bank, N.A. [Member] | Credit Agreement [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  | 1.29% |  |  |  |  |  |  |  |
Wells Fargo Bank, N.A. [Member] | Credit Agreement [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 12,500,000 | $ 12,500,000 |  |  |  |  |  |  |  |  |  |
Debt Instrument Covenant Minimum, Net Income Required | $ 1 |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Covenant, Fixed Charge Coverage Ratio | 1.25 | 1.25 |  |  |  |  |  |  |  |  |  |
Debt Instrument Covenant Capital Expenditures Limitation, Amount, After Twelve Years | $ 6,500,000 | $ 6,500,000 |  |  |  |  |  |  |  |  |  |
Long-term Debt, Percentage Bearing Fluctuating Interest, Threshold Amount | $ 100,000 | $ 100,000 |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Unused Commitment Fee | 0.25% | 0.25% |  |  |  |  |  |  |  |  |  |
Debt Instrument Basis Spread on Elected Fixed Rate Borrowing | 1.00% | 1.00% |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Loss Requirements, Third Quarter 2024 |  |  |  |  | $ 2,000,000 | $ 3,200,000 |  |  |  |  |  |
Line of Credit Facility, Availability Reserve |  | 10.00% |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Up Front Amendment Fee of the Maximum Borrowing Base | 1.00% | 1.00% |  |  |  |  |  |  |  |  |  |
Wells Fargo Bank, N.A. [Member] | Credit Agreement [Member] | Subsequent Event [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Covenant Capital Expenditures Limitation, Amount, Next Twelve Years | $ 7,500,000 | $ 7,500,000 |  |  |  |  |  |  |  |  |  |
Ratio of Indebtedness to Net Capital | 1.5 | 1.5 |  |  |  |  |  |  |  |  |  |
Wells Fargo Bank, N.A. [Member] | Credit Agreement [Member] | Subsequent Event [Member] | Minimum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument Covenant Capital Expenditures Limitation, Amount, Next Twelve Years | $ 6,500,000 | $ 6,500,000 |  |  |  |  |  |  |  |  |  |
Wells Fargo Bank, N.A. [Member] | Credit Agreement [Member] | Subsequent Event [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate | 2.25% |  |  |  |  |  |  |  |  |  |  |
Wells Fargo Bank, N.A. [Member] | Credit Agreement [Member] | Term Loan [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  | $ 10,000,000 |  |  |  |  |  |  |  |
Debt Instrument, Term (Year) |  |  |  | 7 years |  |  |  |  |  |  |  |
Long-Term Debt |  |  |  |  |  |  | $ 9,400,000 |  |  |  |  |
Wells Fargo Bank, N.A. [Member] | Credit Agreement [Member] | Term Loan [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] |  |  |  |  |  |  |  |  |  |  |  |
Debt Instrument, Basis Spread on Variable Rate |  |  |  | 1.80% |  |  |  |  |  |  |  |

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