Summary of Significant Accounting Policies (Details Textual) - USD ($)					4 Months Ended	8 Months Ended	12 Months Ended
	Jan. 26, 2017	Jan. 25, 2017	Dec. 31, 2016	Apr. 22, 2016	Apr. 22, 2016	Dec. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Sep. 30, 2016
Summary of Significant Accounting Policies (Textual) [Abstract]
Total capitalized internal costs					$ 2,900,000	$ 5,400,000		$ 12,700,000	$ 26,300,000
Discount rate for estimated future net revenues from proved properties							10.00%
Allowance for doubtful accounts receivable, current			$ 100,000			100,000	$ 100,000	100,000
Accounts receivable from oil and gas sales			12,600,000			12,600,000	12,600,000	14,900,000
Accounts receivable related to joint interest owners			2,700,000			2,700,000	2,700,000	4,900,000
Severance tax credit receivables			1,600,000			1,600,000	1,600,000	1,200,000
Other receivables			600,000			600,000	$ 600,000	700,000
Percentage of working interest in wells							100.00%
Inventories carried at cost			400,000			400,000	$ 400,000	600,000
Inventory write-down								2,000,000
Prepaid expenses			2,000,000			2,000,000	2,000,000	4,400,000
Texegy PSA deposit								$ 2,400,000
Supplemental Unemployment Benefits, Severance Benefits										$ 2,100,000
Lease commitments subject to capitalization			8,800,000			8,800,000	8,800,000
Corporate Lease commitment subject to capitalization			1,900,000			1,900,000	1,900,000
Corporate Lease commitment due in 4 years			4.4			4.4	4.4
Vehicle Lease commitment subject to capitalization			$ 6,500,000			$ 6,500,000	$ 6,500,000
Minimum [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Property, Plant and Equipment, Useful Life							2 years
Maximum [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Property, Plant and Equipment, Useful Life								20 years
Line of Credit [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Revolving credit facility debt issuance costs								$ 3,300,000
New Credit Facility [Member] | Line of Credit [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Line of Credit Facility, Current Borrowing Capacity				$ 320,000,000	320,000,000
Line of Credit Facility, Non-Conforming Borrowing Base				70,000,000
Line of Credit Facility, Conforming Borrowing Base				$ 250,000,000
Subsequent Event [Member] | New Credit Facility [Member] | Line of Credit [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Line of Credit Facility, Conforming Borrowing Base	$ 250,000,000
Predecessor [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Common Stock, Shares, Issued								44,771,258
Write-down of oil and gas properties					77,732,000			$ 1,562,086,000	445,396,000
Total amount of supervision fees charged to wells					$ 2,700,000			9,200,000	$ 12,700,000
Other payables before reclass to liabilities subject to compromise								5,300,000
Other payables reclassed to liabilities subject to compromise								$ 4,800,000
Treasury stock reissued at lower than repurchase price							$ 4,900,000
Treasury Stock, Shares, Acquired					65,170			70,437	102,673
Predecessor [Member] | Shell Oil Company Concentration Risk [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Concentration risk, percentage					19.00%			16.00%	21.00%
Predecessor [Member] | Kinder Morgan Concentration Risk [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Concentration risk, percentage					20.00%			27.00%	20.00%
Predecessor [Member] | Plains Marketing Concentration Risk [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Concentration risk, percentage					14.00%			18.00%	11.00%
Predecessor [Member] | Howard Energy Concentration Risk [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Concentration risk, percentage					11.00%			13.00%
Predecessor [Member] | Southcross Concentration Risk [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Concentration risk, percentage					11.00%
Successor [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Common Stock, Shares, Issued			10,076,059			10,076,059	10,076,059
Write-down of oil and gas properties						$ 133,496,000
Total amount of supervision fees charged to wells							$ 4,500,000
Treasury Stock, Shares, Acquired						22,485
Successor [Member] | Shell Oil Company Concentration Risk [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Concentration risk, percentage						15.00%
Successor [Member] | Kinder Morgan Concentration Risk [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Concentration risk, percentage						38.00%
Successor [Member] | Plains Marketing Concentration Risk [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Concentration risk, percentage						14.00%
Private Placement [Member] | Subsequent Event [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Common Stock, Shares, Issued		1,400,000
Sale of Stock, Price Per Share		$ 28.50
Proceeds from Issuance of Private Placement		$ 40,000,000
Equipment [Member] | Minimum [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Equipment lease term			2 years
Equipment [Member] | Maximum [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Equipment lease term			3 years
Building [Member]
Summary of Significant Accounting Policies (Textual) [Abstract]
Equipment lease term			4 years