CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Unaudited) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Consolidated Statements Of Comprehensive Income Loss
Net loss	$ (8,534)	$ (7,940)	$ (9,849)
Other comprehensive income (loss):
Reduction (increase) in additional minimum pension liability	332	(744)	(622)
Foreign currency translation adjustment	67	(20)	(69)
Comprehensive loss	$ (8,135)	$ (870)	$ (10,540)