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Note 9 - Commitments and Contingencies - Concentration of Risk by Customer (Details) - Customer Concentration Risk [Member]	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Revenue Benchmark [Member] \| United States Government Agencies [Member]
Revenue, percent	50.70%	39.10%	26.30%	40.70%
Revenue Benchmark [Member] \| Customer A [Member]
Revenue, percent	26.20%	14.10%	0.00%	0.00%
Revenue Benchmark [Member] \| Customer B [Member]
Revenue, percent	0.00%	0.00%	13.30%	10.30%
Accounts Receivable [Member] \| United States Government Agencies [Member]
Revenue, percent			29.80%	21.30%
Accounts Receivable [Member] \| Customer A [Member]
Revenue, percent			21.20%	0.00%
Accounts Receivable [Member] \| Customer B and C [Member]
Revenue, percent			0.00%	30.70%

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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