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Note D - Concentration of Risk (Details Textual) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 USD ($) | Dec. 31, 2024 USD ($)
Cash, Uninsured Amount | $ 0 | $ 0
Customer Concentration Risk [Member] | Revenue Benchmark [Member] |  |
Concentration Risk, Number of Major Customers | 2 | 1
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | Two Customers [Member] |  |
Concentration Risk, Percentage | 26.00% |
Customer Concentration Risk [Member] | Revenue Benchmark [Member] | One Customer [Member] |  |
Concentration Risk, Percentage |  | 24.00%
Customer Concentration Risk [Member] | Accounts Receivable [Member] |  |
Concentration Risk, Number of Major Customers | 2 | 2
Customer Concentration Risk [Member] | Accounts Receivable [Member] | Two Customers [Member] |  |
Concentration Risk, Percentage | 43.00% | 36.00%

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