Note 5 - Inventories (Tables)

9 Months Ended

Sep. 30, 2012

Schedule of Inventory, Current [Table Text Block]

	September 30, 2012		December 31, 2011
Raw materials	$	8,261,000	$	8,007,000
Work in process		3,230,000		3,048,000
Finished goods		5,200,000		4,511,000
	$	16,691,000	$	15,566,000