Note 5 - Inventory (Tables)

3 Months Ended

Mar. 31, 2014

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

(in thousands)	March 31, 2014			December 31, 2013
Raw materials	$	4,996		$	4,875
Work in process		535			410
Total inventory		5,531			5,285
Allowance for obsolescence		(185	)		(119	)
Inventory, net of allowance	$	5,346		$	5,166