Inventories (Tables)

6 Months Ended

Jun. 30, 2012

Inventory Disclosure [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories consisted of the following (in thousands):

	June 30, 2012			December 31, 2011
Raw materials	$	10,385		$	10,925
Work-in-process	705			599
Finished goods	14,012			20,127
	25,102			31,651
Less: inventory valuation allowance	(2,464		)	(4,640		)
Inventories, net	$	22,638		$	27,011

Schedule of Inventory Deposit [Table Text Block]

	June 30, 2012			December 31, 2011
Inventory deposit (A)	$	11,091		$	11,578
Less: inventory deposit valuation allowance	(2,989		)	(3,135		)
Inventory deposit, net	$	8,102		$	8,443

Charges Associated with Inventory [Table Text Block]

The Company recorded the following charges associated with the valuation of inventory, inventory deposit and the adverse purchase commitment liability (in thousands):

	For the Three Months Ended					For the Six Months Ended
	June 30,					June 30,
	2012			2011		2012			2011
Inventory, net	$	578		$	364	$	1,031		$	822
Inventory deposit, net	64			193		363			408
Adverse purchase commitments	(102		)	546		(28		)	797