Stockholders' Deficit (Details) - The components of accumulated other comprehensive loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Stockholders' Deficit (Details) - The components of accumulated other comprehensive loss [Line Items]
Balances	$ (1,276)	$ (156)	$ (1,868)
Actuarial gain (loss)	409	(652)
Translation gain (loss)	56	(448)
Pension Plan Acturial Loss Gain [Member]
Stockholders' Deficit (Details) - The components of accumulated other comprehensive loss [Line Items]
Balances	(5,722)	(5,313)	(5,965)
Actuarial gain (loss)	(409)	652
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Stockholders' Deficit (Details) - The components of accumulated other comprehensive loss [Line Items]
Balances	112	56	504
Translation gain (loss)	56	(448)
AOCI Including Portion Attributable to Noncontrolling Interest [Member]
Stockholders' Deficit (Details) - The components of accumulated other comprehensive loss [Line Items]
Balances	(5,610)	(5,257)	$ (5,461)
Actuarial gain (loss)	(409)	652
Translation gain (loss)	$ 56	$ (448)