Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Current [Abstract]
Federal	$ (8,102)	$ (10,282)	$ (4,336)
State	(892)	(1,176)	(1,187)
Current income tax (provision) benefit	(8,994)	(11,458)	(5,523)
Deferred [Abstract]
Federal	(2,682)	(4,940)	(7,407)
State	(478)	(438)	99
Deferred income tax (provision) benefit	(3,160)	(5,378)	(7,308)
Income tax (provision) benefit	(12,154)	(16,836)	(12,831)
Income tax (provision) benefit, continuing and discontinued operations [Abstract]
From continuing operations	(12,429)	(16,664)	(12,717)
From discontinued operations	275	(172)	(114)
Income tax (provision) benefit	(12,154)	(16,836)	(12,831)
Reconciliation of taxes computed at the corporate federal income tax rate to the reported income tax (provision) [Abstract]
Statutory federal income tax (provision) benefit	(11,819)	(15,619)	(12,517)
State income tax (provision) benefit	(891)	(1,049)	(707)
Federal statutory depletion	522	36	393
Other	34	(204)	0
Income tax (provision) benefit	(12,154)	(16,836)	(12,831)
Current deferred tax asset (liability) [Abstract]
Allowance for doubtful accounts	424	581
Prepaid and other insurance	(855)	(815)
Fair value contracts	73	(6)
Net current deferred liability	(358)	(240)
Long-term deferred tax asset (liability) [Abstract]
Property	(18,964)	(15,957)
Uniform capitalization	613	552
Other	(283)	(221)
Net long-term deferred tax liability	(18,634)	(15,626)
Net deferred tax liability	$ (18,992)	$ (15,866)
Federal [Member]
Income Tax Examination [Line Items]
Earliest Open Tax Year	2010
Texas [Member]
Income Tax Examination [Line Items]
Earliest Open Tax Year	2009
Louisiana [Member]
Income Tax Examination [Line Items]
Earliest Open Tax Year	2010
Michigan [Member]
Income Tax Examination [Line Items]
Earliest Open Tax Year	2010