Note 7 - Long-lived Assets (Tables)

12 Months Ended

Dec. 31, 2020

Notes Tables

Property, Plant and Equipment [Table Text Block]

	As of December 31,
	2020			2019			Life (in years)
Land	$	1,423		$	1,423
Buildings		20,778			20,747			39
Machinery and equipment		113,266			109,775			2 - 10
Office furniture and equipment		5,099			4,597			3 - 7
Leasehold improvements		9,305			8,974		Shorter of asset life or life of lease
Construction in progress		502			1,093
		150,373			146,609
Less accumulated depreciation and amortization		(105,178	)		(99,669	)
Total property and equipment	$	45,195		$	46,940

Schedule of Finite-Lived Intangible Assets [Table Text Block]

	December 31, 2020												December 31, 2019
											Remaining												Remaining
											Weighted												Weighted
						Accumulated			Net		Average							Accumulated			Net		Average
	Cost		Accumulated			Impairment			Book		Amortization				Accumulated			Impairment			Book		Amortization
	Basis		Amortization			Charges			Value		Period		Cost		Amortization			Charges			Value		Period
Intangible assets:
Noncompete agreements	$	170	$	(111	)	$	—		$	59		2.1	$	170	$	(83	)	$	—		$	87		3.1
Customer relationships		15,979		(6,979	)		(7,592	)		1,408		4.9		15,979		(6,674	)		(7,592	)		1,713		5.8
Trade names		9,099		(6,380	)		—			2,719		6.8		9,099		(5,980	)		—			3,119		7.8
Intangible assets	$	25,248	$	(13,470	)	$	(7,592	)	$	4,186		4.6	$	25,248	$	(12,737	)	$	(7,592	)	$	4,919		6.5

Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]

2021	$	733
2022		725
2023		664
2024		661
2025		661
2026 and thereafter		742
Total	$	4,186