Note 4 - Fair Value Measurements - Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Interest Rate Swap [Member]
Interest rate swap	$ 271	$ 285
Interest rate swap	271	285
Fair Value, Inputs, Level 1 [Member] | Interest Rate Swap [Member]
Interest rate swap	0	0
Interest rate swap	0	0
Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]
Interest rate swap	271	285
Interest rate swap	271	285
Fair Value, Inputs, Level 3 [Member] | Interest Rate Swap [Member]
Interest rate swap	0	0
Interest rate swap	0	0
Acculogic [Member]
Contingent consideration liability	(1,069)	(1,093)
Acculogic [Member] | Fair Value, Inputs, Level 1 [Member]
Contingent consideration liability	0	0
Acculogic [Member] | Fair Value, Inputs, Level 2 [Member]
Contingent consideration liability	0	0
Acculogic [Member] | Fair Value, Inputs, Level 3 [Member]
Contingent consideration liability	$ (1,069)	$ (1,093)