Inventories (Tables)

3 Months Ended

Mar. 31, 2013

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories at the end of each period were as follows (in thousands):

	March 31, 2013			December 31,  2012
Raw materials	$	288		$	279
Finished goods		1,476			1,694
		1,764			1,973
Less: Inventory allowance		(219	)		(246	)
	$	1,545		$	1,727