Consolidated Statements of Stockholders' Equity - 9 months ended Sep. 30, 2016 - USD ($) $ in Thousands	Common Stock	Additional Paid-in-Capital	Accumulated Other Comprehensive Income	Treasury Stock	Accumulated Deficit	Total
Balance at Dec. 31, 2015	$ 1,806	$ 1,118,917	$ 798	$ (2,909)	$ (993,876)	$ 124,736
Balance (in shares) at Dec. 31, 2015	180,567,444			479,953		180,567,444
Increase (Decrease) in Stockholders' Equity
Net loss attributable to the Company					(38,276)	$ (38,276)
Other comprehensive income			317			317
Stock based compensation		6,745				6,745
Stock based compensation (in shares)	46,974
Stock dividend	$ 1	77			(78)
Stock dividend (in shares)	47,061
Stock option exercises	$ 2	17		$ (175)		(156)
Stock option exercises (in shares)	227,777			97,423
Exercise of warrants	$ 1	251				252
Exercise of warrants (in shares)	119,879
Balance at Sep. 30, 2016	$ 1,810	$ 1,126,007	$ 1,115	$ (3,084)	$ (1,032,230)	$ 93,618
Balance (in shares) at Sep. 30, 2016	181,009,135			577,376		181,009,135