CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Total	Preferred Stock	Common Stock	Treasury Stock	Additional Paid-in-Capital	Accumulated Deficit	Accumulated Other Comprehensive Income
Balances - beginning at Dec. 31, 2015	$ 443,903	$ 0	$ 5	$ (2,397)	$ 472,494	$ (20,640)	$ (5,559)
Balances - beginning (in shares) at Dec. 31, 2015		1	49,940,548
Increase (Decrease) in Stockholders' Equity
Stock-based compensation	1,687				1,687
Issuance of restricted stock (in shares)			692,269
Repurchase of stock for treasury	(1,488)			(1,488)	0
Comprehensive loss	(45,568)					(50,301)	4,733
Balances - ending at Jun. 30, 2016	398,534	$ 0	$ 5	(3,885)	474,181	(70,941)	(826)
Balances- ending (in shares) at Jun. 30, 2016		1	50,632,817
Balances - beginning at Dec. 31, 2016	335,145	$ 0	$ 5	(3,885)	475,598	(132,200)	(4,373)
Balances - beginning (in shares) at Dec. 31, 2016		1	50,698,587
Increase (Decrease) in Stockholders' Equity
Stock-based compensation	806				806
Transfer of director compensation from liability to equity					80
Issuance of restricted stock (in shares)			300,499
Settlement of Dow liabilities, net of income tax	55,089				55,089
Comprehensive loss	(19,707)					(9,422)	(10,285)
Balances - ending at Jun. 30, 2017	$ 371,413	$ 0	$ 5	$ (3,885)	$ 531,573	$ (141,622)	$ (14,658)
Balances- ending (in shares) at Jun. 30, 2017		1	50,999,086