Note 8 - Accrued Expenses (Tables)

9 Months Ended

Sep. 30, 2020

Notes Tables

Schedule of Accrued Liabilities [Table Text Block]

	September 30,		December 31,
	2020		2019
Sales commissions	$	2,715	$	2,542
Subcontracting labor		1,097		990
Salaries, bonuses and related benefits		18,651		14,715
Warranty accrual		1,227		1,576
Other		8,056		7,095
	$	31,746	$	26,918

Restructuring and Related Costs [Table Text Block]

			Nine Months Ended
			September 30, 2020
	Liability at					Cash Payments			Liability at
	December 31,		New			and Other			September 30,
	2019		Charges			Settlements			2020
Severance costs	$	-	$	327		$	(327	)	$	-
Other restructuring costs		44		(44	)		-			-
Total	$	44	$	283		$	(327	)	$	-