Note 5 - Inventories (Tables)

6 Months Ended

Jun. 30, 2012

Schedule of Inventory, Current [Table Text Block]

	June 30, 2012		December 31, 2011
Raw materials	$	7,073,000	$	8,007,000
Work in process		2,868,000		3,048,000
Finished goods		4,284,000		4,511,000
	$	14,225,000	$	15,566,000