Note 3 - Fair Value Measurements - Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Interest Rate Swap [Member]
Interest rate swap	$ 457	$ 528
Interest rate swap	457	528
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	457	528
Interest rate swap	457	528
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	(1,394)	(1,363)
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	$ (1,394)	$ (1,363)