Inventories, Net (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	$	3,727,000	$	3,486,000
Work in process		1,349,000		1,387,000
Finished goods		10,669,000		11,576,000
Allowance for excess quantities		(687,000)		(636,000)
Total inventories	$	15,058,000	$	15,813,000