Note 5 - Inventory (Details) - The Company’s Inventory (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
The Company’s Inventory [Abstract]
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