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%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.