Inventory (Tables)

3 Months Ended

Mar. 31, 2016

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventory is comprised of the following:

	March 31, 2016		December 31, 2015
Raw Materials	$	1,099,000	$	1,208,000
Work In Process		430,000		399,000
Finished Goods		545,000		571,000
Allowance for slow moving and obsolete inventory		(453,000)		(432,000)
	$	1,621,000	$	1,746,000