Inventories, Net (Tables)

3 Months Ended

Mar. 31, 2013

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

	March 31, 2013			December 31, 2012
Raw materials	$	3,646,000		$	3,486,000
Work in process		1,098,000			1,388,000
Finished goods		11,773,000			11,576,000
Allowance for excess quantities		(693,000	)		(636,000	)
Total inventories	$	15,824,000		$	15,814,000