Note 7 - Inventory (Tables)

3 Months Ended

Mar. 31, 2019

Notes Tables

Schedule of Inventory, Current [Table Text Block]

	March 31,			December 31,
(in thousands)	2019			2018
Raw materials	$	9,132		$	9,560
Work in process		412			792
Total inventory		9,544			10,352
Allowance for obsolescence		(188	)		(265	)
Inventory, net of allowance	$	9,356		$	10,087