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Note 7 - Commitments and Contingencies - Concentration of Risk by Customer (Details) - Customer Concentration Risk [Member]	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Accounts Receivable [Member] \| United States Government Agencies [Member]
Revenue, percent	7.00%	8.70%
Accounts Receivable [Member] \| Customer A [Member]
Revenue, percent	60.80%	25.80%
Accounts Receivable [Member] \| Customer B [Member]
Revenue, percent	0.00%	13.30%
Revenue Benchmark [Member] \| United States Government Agencies [Member]
Revenue, percent	43.00%	10.90%
Revenue Benchmark [Member] \| Customer A [Member]
Revenue, percent	39.00%	23.10%
Revenue Benchmark [Member] \| Customer B [Member]
Revenue, percent	0.00%	11.20%

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.

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