Inventories (Tables)

3 Months Ended

Mar. 31, 2013

Inventory Disclosure [Abstract]

Schedule of inventory, net of reserves

Inventories, net of reserves, as of March 31, 2013 and December 31, 2012 consisted of the following:

	March 31, 2013		December 31, 2012
Current:
Raw materials	$	936	$	734
Finished goods	10,668		10,139
	$	11,604	$	10,873
Long-term:
Raw materials	$	857	$	891
Finished goods	956		1,064
	$	1,813	$	1,955

Schedule of Non-Current Inventory Valuation Losses [Table Text Block]

The following table summarizes the losses incurred on valuation of inventory at lower of cost or market value and write-off of obsolete inventory during the three months ended March 31, 2013 and 2012, respectively.

	Three months ended March 31,
	2013		2012
Losses incurred on valuation of inventory and write-off of obsolete inventory	$	—	$	90