Inventories (Tables)

12 Months Ended

Dec. 31, 2011

INVENTORIES [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories consisted of the following at December 31, 2011 and 2010 (in thousands):

	2011		2010
Finished goods	$	32,604	$	24,476
Parts and materials	18,004		6,727
Work in progress	2,606		2,776
Total inventories	$	53,214	$	33,979