SCHEDULE I - CONDENSED FINANCIAL INFORMATION OF THE REGISTRANT [Schedule] Condensed Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating expenses:
Depreciation and amortization									$ 3,845	$ 5,559	$ 5,922
Business reorganization expenses									5,828	3,789	5,440
Operating income (loss)	$ 140	$ (3,826)	$ 13,643	$ (6,716)	$ (6,134)	$ (5,113)	$ (2,865)	$ (3,374)	3,241	(17,486)	(27,152)
Other income (expense):
Interest income (expense), net									(722)	(661)	(554)
Other income (expense), net									(266)	202	759
Provision for (benefit from) income taxes from continuing operations									646	(2,159)	3,264
Net income (loss)	$ (2,626)	$ (2,084)	$ 13,877	$ (6,838)	$ 2,743	$ (7,019)	$ (4,374)	$ (4,544)	2,329	(13,194)	(30,395)
Parent Company
Operating expenses:
Selling, general and administrative expenses									13,327	16,948	15,953
Depreciation and amortization									488	541	645
Business reorganization expenses									1,168	967	790
Operating income (loss)									(14,983)	(18,456)	(17,388)
Other income (expense):
Interest income (expense), net									516	103	105
Other income (expense), net									5,318	8,150	9,412
Income (Loss) from Subsidiaries, Net of Tax									11,466	(2,995)	(22,522)
Income (loss) from continuing operations before provision for income taxes									(9,149)	(10,203)	(7,871)
Provision for (benefit from) income taxes from continuing operations									(12)	(4)	2
Net income (loss)									$ 2,329	$ (13,194)	$ (30,395)