Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Current [Abstract]
Federal	$ (3,883)	$ (8,626)	$ (8,102)
State	(190)	(1,249)	(892)
Current income tax (provision) benefit	(4,073)	(9,875)	(8,994)
Deferred [Abstract]
Federal	5,011	5,878	(2,682)
State	(168)	273	(478)
Deferred income tax (provision) benefit	4,843	6,151	(3,160)
Income tax (provision) benefit	770	(3,724)	(12,154)
Income tax (provision) benefit, continuing and discontinued operations [Abstract]
From continuing operations	770	(3,561)	(12,429)
From discontinued operations	0	(163)	275
Income tax (provision) benefit	770	(3,724)	(12,154)
Reconciliation of taxes computed at the corporate federal income tax rate to the reported income tax (provision) [Abstract]
Statutory federal income tax (provision) benefit	716	(3,587)	(11,819)
State income tax (provision) benefit	(233)	(634)	(891)
Federal statutory depletion	144	549	522
Other	143	(52)	34
Income tax (provision) benefit	770	(3,724)	$ (12,154)
Current deferred tax asset (liability) [Abstract]
Allowance for doubtful accounts	0	62
Prepaid and other insurance	0	(719)
Fair value contracts	0	(1)
Net current deferred tax liability	0	(658)
Long-term deferred tax asset (liability) [Abstract]
Prepaid and other insurance	(1,243)	0
Property	(7,408)	(12,673)
Uniform capitalization	704	661
Other	(51)	(170)
Net long-term deferred tax liability	(7,998)	(12,182)
Net deferred tax liability	$ (7,998)	$ (12,840)
Federal [Member]
Income Tax Examination [Line Items]
Earliest Open Tax Year	2012
Texas [Member]
Income Tax Examination [Line Items]
Earliest Open Tax Year	2011
Louisiana [Member]
Income Tax Examination [Line Items]
Earliest Open Tax Year	2012
Michigan [Member]
Income Tax Examination [Line Items]
Earliest Open Tax Year	2011