CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' DEFICIT (USD $) In Thousands, unless otherwise specified	Class A Common Stock [Member]	Class B Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Other Comprehensive Income [Member]	Accumulated Deficit [Member]	Noncontrolling Interest [Member]	Total
Balance at Dec. 31, 2010	$ 65	$ 13	$ 103	$ (26)	$ (106,405)	$ 454	$ (105,796)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income for the year			0	0	1,454	2,049	3,503
Foreign currency translation income (loss)			0	8	0	0	8
Pension liability adjustments			0	53	0	0	53
Stock-based compensation							0
Distributions			0	0	0	(2,122)	(2,122)
Balance at Dec. 31, 2011	65	13	103	35	(104,951)	381	(104,354)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income for the year				0	7,435	2,060	9,495
Foreign currency translation income (loss)			0	(19)	0	0	(19)
Pension liability adjustments			0	56	0	0	56
Stock-based compensation							0
Distributions			0	0	0	(1,973)	(1,973)
Balance at Dec. 31, 2012	65	13	103	72	(97,516)	468	(96,795)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income for the year			0	0	(2,618)	1,807	(811)
Foreign currency translation income (loss)			0	(24)	0	0	(24)
Pension liability adjustments							0
Stock-based compensation			43	0	0	0	43
Distributions			0	0	0	(1,821)	(1,821)
Balance at Dec. 31, 2013	$ 65	$ 13	$ 146	$ 48	$ (100,134)	$ 454	$ (99,408)