Note 3 - Inventories (Tables)

6 Months Ended

Jun. 30, 2013

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

	June 30, 2013		December 31, 2012
Raw materials	$	16,346	$	15,023
Work in process		3,470		4,863
Finished goods		11,205		10,484
	$	31,021	$	30,370