Note 11 - Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenue from Contract with Customer, Including Assessed Tax	$ 20,179	$ 20,069	$ 58,664	$ 57,786
United States Government Agencies [Member]
Revenue from Contract with Customer, Including Assessed Tax	7,896	12,142	23,879	29,571
Accounts Receivable, after Allowance for Credit Loss	$ 1,997	$ 4,280	$ 1,997	$ 4,280
United States Government Agencies [Member] | Revenue Benchmark [Member] | Government Contracts Concentration Risk [Member]
Concentration Risk, Percentage	39.10%	60.50%	40.70%	51.20%
Inventories [Member]
Purchase Obligation	$ 7,285		$ 7,285