Inventories (Tables)

12 Months Ended

Dec. 31, 2015

INVENTORIES [Abstract]

Schedule of Inventory, Current [Table Text Block]

Inventories consisted of the following at December 31, 2015 and 2014 (in thousands):

	2015		2014
Finished goods	$	25,778	$	32,249
Parts and materials	12,637		9,147
Work in progress	2,491		1,975
Total inventories	$	40,906	$	43,371