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v3.24.1

Note 1 - Organization and Significant Accounting Policies (Details Textual) |  | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | ---
Feb. 07, 2024 USD ($) | Feb. 07, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
Number of Operating Segments |  |  |  | 2 |
Standard and Extended Product Warranty Accrual |  |  | $ 805,000 | $ 805,000 | $ 690,000
Product Warranty Expense |  |  |  | $ 350,000 | 251,000
Multi Employer Plans Collective Bargaining Arrangement Number of Participants |  |  |  | 406 |
Multiemployer Plan, Employees Covered by Collective-Bargaining Arrangement, Subject to Expiration in 12 Months |  |  | 0 | 0 |
Net Income (Loss) Attributable to Parent |  |  |  | $ 1,596,000 | 2,494,000
Net Cash Provided by (Used in) Operating Activities |  |  |  | 11,089,000 | (13,793,000)
Inventory, Net |  |  | $ 77,314,000 | 77,314,000 | $ 42,133,000
Gill Family Capital Management [Member] | Promissory Notes With Maturity On April 1, 2024 And April 1, 2026 [Member] |  |  |  |  |
Debt Instrument, Increase (Decrease), Net |  |  | 2,500,000 |  |
Subordinated Debt |  |  | 6,500,000 | 6,500,000 |
Gill Family Capital Management [Member] | Promissory Notes With Maturity On April 1, 2024 And April 1, 2026 [Member] | Subsequent Event [Member] |  |  |  |  |
Debt Instrument, Increase (Decrease), Net | $ 2,500,000 | $ 5,000,000 |  |  |
Subordinated Debt | 9,000,000 | 9,000,000 |  |  |
Gill Family Capital Management [Member] | Promissory Notes With Maturity on April 1, 2025 [Member] |  |  |  |  |
Subordinated Debt |  |  | 2,000,000 | 2,000,000 |
Gill Family Capital Management [Member] | Promissory Note With Maturity On April 1, 2026 [Member] |  |  |  |  |
Subordinated Debt |  |  | 2,000,000 | 2,000,000 |
Gill Family Capital Management [Member] | Promissory Notes With Maturity On April 1, 2027 [Member] |  |  |  |  |
Subordinated Debt |  |  | 2,500,000 | $ 2,500,000 |
Gill Family Capital Management [Member] | Promissory Notes With Maturity On April 1, 2027 [Member] | Subsequent Event [Member] |  |  |  |  |
Debt Instrument, Increase (Decrease), Net | 2,500,000 |  |  |  |
Subordinated Debt | $ 5,000,000 | $ 5,000,000 |  |  |
Employee Benefit Related Adjustments Mexico [Member] |  |  |  |  |
Multi Employer Plans Collective Bargaining Arrangement Number of Participants |  |  |  | 382 |
Multiemployer Plan, Pension, Significant, Employees Covered by Collective-Bargaining Arrangement to All Entity's Employees, Percentage |  |  |  | 54.00% |
Multiemployer Plan, Pension, Significant, Employees Covered by Collective-Bargaining Arrangement to All Participants, Percentage |  |  |  | 51.00% |
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Two Customers [Member] |  |  |  |  |
Concentration Risk, Percentage |  |  |  | 30.00% |
Number of Major Customers |  |  |  | 2 |
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer Subcom [Member] |  |  |  |  |
Concentration Risk, Percentage |  |  |  | 16.00% |
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer Detroit Diesel [Member] |  |  |  |  |
Concentration Risk, Percentage |  |  |  | 14.00% | 18.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Three Customers [Member] |  |  |  |  |
Concentration Risk, Percentage |  |  |  |  | 31.00%
Number of Major Customers |  |  |  |  | 2
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer ADI [Member] |  |  |  |  |
Concentration Risk, Percentage |  |  |  |  | 13.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer Subcom [Member] |  |  |  |  |
Concentration Risk, Percentage |  |  |  | 10.00% |
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer Detroit Diesel [Member] |  |  |  |  |
Concentration Risk, Percentage |  |  |  | 13.00% | 18.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Customer Sistemas [Member] |  |  |  |  |
Concentration Risk, Percentage |  |  |  | 22.00% | 22.00%
Revenue Benchmark [Member] | Customer Concentration Risk [Member] | Northrop Grumman [Member] |  |  |  |  |
Concentration Risk, Percentage |  |  |  | 17.00% | 14.00%
Capitalized Implementation Costs [Member] |  |  |  |  |
Prepaid Expense and Other Assets |  |  | $ 156,000 | $ 156,000 | $ 204,000

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