PostRock Energy (PSTR) 10-Q 14 May 15 2015 Q1 Quarterly report Financial data

Document_and_Entity_Informatio

Document and Entity Information	3 Months Ended
	Mar. 31, 2015	8-May-15
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	FALSE
Document Period End Date	31-Mar-15
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Trading Symbol	PSTR
Entity Registrant Name	PostRock Energy Corp
Entity Central Index Key	1473061
Current Fiscal Year End Date	-19
Entity Filer Category	Smaller Reporting Company
Entity Common Stock, Shares Outstanding		6,496,241

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Current assets
Cash and equivalents	$66	$46
Accounts receivable-trade, net	4,903	9,080
Other receivables	477	515
Inventory	1,106	1,042
Other	319	1,031
Derivative financial instruments	12,407	11,151
Total	19,278	22,865
Oil and natural gas properties, full cost method of accounting, net	148,682	153,240
Other property and equipment, net	10,958	11,829
Derivative financial instruments	6,999	6,162
Other, net	1,436	1,579
Total assets	187,353	195,675
Current liabilities
Accounts payable	2,610	9,278
Revenue payable	3,251	4,051
Accrued expenses and other	4,155	3,283
Total	10,016	16,612
Long-term debt	83,500	83,000
Mandatorily redeemable preferred stock, $0.01 par value; 5,075 shares issued and outstanding	66,625	63,954
Asset retirement obligations	13,990	13,884
Other		1
Total liabilities	174,131	177,451
Commitments and contingencies
Stockholders’ equity
Common stock, $0.01 par value; 100,000,000 authorized shares; issued—6,523,811 and 6,598,078; outstanding—6,336,728 and 6,415,100, respectively	66	65
Additional paid-in capital	482,071	481,050
Treasury stock, at cost	-2,080	-2,432
Accumulated deficit	-466,835	-460,459
Total stockholders’ equity	13,222	18,224
Total liabilities and stockholders’ equity	187,353	195,675
Series B Preferred Stock [Member]
Stockholders’ equity
Preferred stock, $0.01 par value; 5,000,000 authorized shares; 23,098 and 33,566 shares of Series B Voting Preferred Stock issued and outstanding, respectively

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Common stock, par value	$0.01	$0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	6,598,078	6,523,811
Common stock, shares outstanding	6,415,100	6,336,728
Series A Preferred Stock [Member]
Preferred stock, par value	$0.01	$0.01
Preferred stock, shares issued	5,075	5,075
Preferred stock, shares outstanding	5,075	5,075
Series B Preferred Stock [Member]
Preferred stock, par value	$0.01	$0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	33,566	23,098
Preferred stock, shares outstanding	33,566	23,098

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Operations (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Revenues
Natural gas sales	$8,811	$15,963
Crude oil sales	3,197	5,105
Gathering	488	735
Total	12,496	21,803
Costs and expenses
Production	9,675	10,272
General and administrative	3,395	3,911
Depreciation, depletion and amortization	7,299	6,902
Gain on disposal of assets	-57	-19
Acquisition costs		34
Total	20,312	21,100
Operating income (loss)	-7,816	703
Other income (expense)
Gain (loss) from derivative financial instruments	5,184	-5,115
Gain on investment	289	1,619
Other income (expense), net	308
Interest expense, net	-4,341	-4,829
Total	1,440	-8,325
Loss before income taxes	-6,376	-7,622
Income taxes
Net loss attributable to common stockholders	($6,376)	($7,622)
Net loss per common share
Basic loss per share	($0.83)	($2.46)
Diluted loss per share	($0.83)	($2.46)
Weighted average common shares outstanding
Basic	7,716,847	3,101,512
Diluted	7,716,847	3,101,512

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities
Net loss	($6,376)	($7,622)
Adjustments to reconcile net loss to net cash flows from operating activities
Depreciation, depletion and amortization	7,299	6,902
Share-based and other compensation	487	968
Amortization of deferred loan costs	141	129
(Gain) loss on derivative financial instruments	-5,184	5,115
Settlement of derivative financial instruments	3,091	-2,507
Gain on disposal of assets	-57	-19
Gain on investment	-289	-1,619
Other non-cash changes to items affecting net loss	3,489	3,865
Changes in operating assets and liabilities
Accounts receivable	4,215	-1,528
Accounts payable	-1,851	-1,407
Other	603	-758
Net cash flows from operating activities	5,568	1,519
Cash flows from investing activities
Restricted cash		-23
Proceeds from sale of investment	289
Expenditures for equipment, development and leasehold	-6,551	-4,430
Proceeds from sale of assets	80	59
Net cash flows used in investing activities	-6,182	-4,394
Cash flows from financing activities
Proceeds from debt	13,500	19,000
Repayments of debt	-13,000	-16,000
Debt and equity financing costs		-11
Proceeds from issuance of common stock	134
Net cash flows from financing activities	634	2,989
Net increase in cash and cash equivalents	20	114
Cash and cash equivalents beginning of period	46	37
Cash and cash equivalents end of period	$66	$151

Condensed_Consolidated_Stateme2

Condensed Consolidated Statement of Stockholders' Equity (USD $)	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Accumulated Deficit [Member]	Series B Preferred Stock [Member]	Total
In Thousands, except Share data	Series B Preferred Stock [Member]	USD ($)	USD ($)	USD ($)	USD ($)		USD ($)
Beginning balance at Dec. 31, 2014		$65	$481,050	($2,432)	($460,459)		$18,224
Beginning balance, common shares at Dec. 31, 2014		6,523,811		187,083			6,336,728
Beginning balance, preferred shares at Dec. 31, 2014	23,098					23,098
Stock-based compensation			241				241
Restricted stock grants, net of forfeitures				3			3
Restricted stock grants, net of forfeitures, shares		-1,582
Funding of 401K and deferred compensation plans			-170	349			179
Funding of 401K and deferred compensation plans, shares		47,433		-4,105			34,690
Issuance of stock		1	133				134
Issuance of stock, shares	10,468	28,416
Issuance of warrants			817				817
Net loss					-6,376		-6,376
Ending balance at Mar. 31, 2015		$66	$482,071	($2,080)	($466,835)		$13,222
Ending balance, common shares at Mar. 31, 2015		6,598,078		182,978			6,415,100
Ending balance, preferred shares at Mar. 31, 2015	33,566					33,566

Basis_of_Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2015
Basis of Presentation [Abstract]
Basis of Presentation	Note 1 — Basis of Presentation
	PostRock Energy Corporation is an independent oil and gas company engaged in the acquisition, exploration, development, production and gathering of crude oil and natural gas. Its primary production activity is focused in the Cherokee Basin, a 15-county region in southeastern Kansas and northeastern Oklahoma, and in Central Oklahoma. It also has minor oil and gas producing properties in the Appalachian Basin. Unless the context requires otherwise, references to “PostRock,” the “Company,” “we,” “us” and “our” refer to PostRock Energy Corporation and its consolidated subsidiaries.
	The unaudited interim condensed consolidated financial statements have been prepared by the Company pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”), and reflect all adjustments that are, in the opinion of management, necessary for a fair statement of the results for the interim periods on a basis consistent with the annual audited consolidated financial statements. All such adjustments are of a normal recurring nature. Certain information, accounting policies and note disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“GAAP”) have been omitted pursuant to such rules and regulations, although the Company believes that the disclosures are adequate to make the information presented not misleading. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and the summary of significant accounting policies and notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2014 (the “2014 10-K”).
	The preparation of condensed consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The operating results for the interim periods are not necessarily indicative of the results to be expected for the full year.
	Certain reclassifications have been made to the prior periods’ financial statements to conform to the current period’s presentation.  These reclassifications had no effect on the financial position, results of operations or cash flows of the Company.

Other_Balance_Sheet_Items

Other Balance Sheet Items	3 Months Ended
	Mar. 31, 2015
Other Balance Sheet Items [Abstract]
Other Balance Sheet Items	Note 2 — Other Balance Sheet Items
	Components of the condensed consolidated balance sheet items are described below:
		December 31,		March 31,
		2014		2015
		(in thousands)
	Other current assets
	Prepaid fees and deposits	$	975	$	274
	Other		56		45
	Total	$	1,031	$	319
	Other noncurrent assets, net
	Deferred financing costs	$	1,126	$	985
	Noncurrent deposits and other		453		451
	Total	$	1,579	$	1,436
	Accrued expenses and other
	Interest	$	26	$	285
	Employee-related costs and benefits		1,870		1,832
	Non-income related taxes		40		636
	Fees for services		316		175
	Asset retirement obligations		134		134
	Other		897		1,093
	Total	$	3,283	$	4,155
	Other noncurrent liabilities
	Other	$	1	$	—
	Total	$	1	$	—

Derivative_Financial_Instrumen

Derivative Financial Instruments	3 Months Ended
	Mar. 31, 2015
Derivative Financial Instruments [Abstract]
Derivative Financial Instruments	Note 3 — Derivative Financial Instruments
	The Company is exposed to commodity price risk and management believes it prudent to periodically reduce exposure to cash-flow variability resulting from this volatility. Accordingly, the Company enters into certain derivative financial instruments in order to manage exposure to commodity price risk inherent in its oil and gas production. Derivative financial instruments are also used to manage commodity price risk inherent in customer pricing requirements and to fix margins on the future sale of oil and natural gas. Specifically, the Company may utilize futures, swaps and options.
	Derivative instruments expose the Company to counterparty credit risk. The Company’s commodity derivative instruments are currently with two counterparties. The Company generally executes commodity derivative instruments under master agreements which allow it, in the event of default, to elect early termination of all contracts with the defaulting counterparty. If the Company chooses to elect early termination, all asset and liability positions with the defaulting counterparty would be net cash settled at the time of election.
	The Company monitors the creditworthiness of its counterparties; however, it is not able to predict sudden changes in counterparties’ creditworthiness. In addition, even if such changes are not sudden, it may be limited in its ability to mitigate an increase in counterparty credit risk. Possible actions include transferring its position to another counterparty or requesting a voluntary termination of the derivative contracts resulting in a cash settlement. Should one of these counterparties not perform, the Company may not realize the benefit of some of its derivative instruments under lower commodity prices as well as incur a loss. The Company includes a measure of counterparty credit risk in its estimates of the fair values of derivative instruments in an asset position.
	The Company does not designate its derivative financial instruments as hedging instruments for financial accounting purposes and, as a result, it recognizes the change in the respective instruments’ fair value currently in earnings. The table below outlines the classification of derivative financial instruments on the condensed consolidated balance sheet and their financial impact on the condensed consolidated statements of operations at and for the periods indicated:
				December 31,			March 31,
	Derivative Financial Instruments		Balance Sheet location	2014			2015
				(in thousands)
	Commodity contracts		Current derivative financial instrument asset	$	11,151		$	12,407
	Commodity contracts		Long-term derivative financial instrument asset		6,162			6,999
				$	17,313		$	19,406
	Gains and losses associated with derivative financial instruments related to oil and gas production were as follows for the periods indicated:
		Three Months Ended March 31,
		2014			2015
		(in thousands)
	Realized gains (losses)	$	-2,507		$	3,091
	Unrealized gains (losses)		-2,608			2,093
	Total gain (loss) from derivative financial instruments	$	-5,115		$	5,184
	The Company entered into an International Swap Dealers Association Master Agreement (ISDA) with each of its two counterparties for which it holds derivative contracts. The ISDA is a standard contract that governs all derivative contracts entered into between the Company and the respective counterparty. The ISDA allows for offsetting of amounts payable or receivable between the Company and the counterparty, at the election of both parties, for transactions that occur on the same date and in the same currency. The Company has multiple oil swap contracts that could be offset under these provisions, but has elected not to offset the fair values of its derivative assets against the fair value of its derivative liabilities on its condensed consolidated balance sheets. The ISDA also includes a master netting arrangement in the event of early termination or default.
	The following table discloses and reconciles the gross amounts as presented in the condensed consolidated balance sheets to the net amounts allowed under a master netting arrangement.  Amounts not offset on the condensed consolidated balance sheets represent positions that do not meet all the conditions for "a right of offset" or positions for which the Company has elected not to offset.
		December 31,			March 31,
		2014			2015
		(in thousands)
	Derivative Assets
	Gross amounts of recognized assets	$	11,151		$	12,407
	Gross amounts offset in the balance sheet		6,162			6,999
	Net amounts of assets presented in the balance sheet		17,313			19,406
	Gross amounts not offset in the balance sheet		-17,313			-19,406
	Net amount	$	—		$	—
	The following table summarizes the estimated volumes, fixed prices and fair values attributable to all of the Company’s oil and gas derivative contracts at March 31, 2015.
		Remainder of			Year Ending December 31,
		2015			2016			Total
		($ in thousands, except per unit data)
	Natural Gas Swaps
	Contract volumes (MMBtu)		6,737,670			7,814,028			14,551,698
	Weighted-average fixed price per MMBtu	$	4.01		$	4.01		$	4.01
	Fair value, net	$	8,242		$	6,928		$	15,170
	Crude Oil Swaps
	Contract volumes (Bbl)		53,676			65,568			119,244
	Weighted-average fixed price per Bbl	$	92.73		$	90.33		$	91.41
	Fair value, net	$	2,152		$	2,084		$	4,236
	Total fair value, net	$	10,394		$	9,012		$	19,406

Fair_Value_Measurements

Fair Value Measurements	3 Months Ended
	Mar. 31, 2015
Fair Value Measurements [Abstract]
Fair Value Measurements	Note 4 — Fair Value Measurements
	Certain assets and liabilities are measured at fair value on a recurring basis in the Company’s condensed consolidated balance sheets. The following methods and assumptions were used to estimate the fair values:
	Cash and Equivalents, Accounts Receivable and Accounts Payable — The carrying amounts approximate fair value due to the short-term nature or maturity of the instruments.
	Commodity Derivative Instruments — The Company’s oil and gas derivative instruments may consist of variable to fixed price swaps, collars and basis swaps. When possible, the Company estimates the fair values of these instruments based on published forward commodity price curves as of the date of the estimate. The discount rate used in the discounted cash flow projections is based on published LIBOR rates adjusted for counterparty credit risk. Counterparty credit risk is incorporated into derivative assets while the Company’s own credit risk is incorporated into derivative liabilities. Both are based on the current published credit default swap rates.
	Investment — The Company had an investment in Constellation Energy Partners LLC, now named Sanchez Production Partners LLC (“SPP”), which consisted of 224,850 Class B units at December 31, 2014 (see Note 5 —  Investment). Fair value for the Class B units, which are publicly traded, is based on market price and classified as a Level 1 measurement under the fair value hierarchy. At December 31, 2014, the fair value used for the Class B units was $1.40 per unit. During the first quarter of 2015, the Company sold the  remaining Class B units in SPP and therefore the Company sold all of its assets classified as Level 1 in the fair value hierarchy.
	The Company classifies assets and liabilities within the fair value hierarchy based on the lowest level of input that is significant to the fair value measurement of each individual asset and liability taken as a whole. Measurement information for assets and liabilities that are measured at fair value on a recurring basis was as follows:
								Total Net Fair
		Level 1		Level 2		Level 3		Value
		(in thousands)
	At December 31, 2014
	Investment, gross	$	315	$	—	$	—	$	315
	Derivative financial instruments—assets		—		17,313		—		17,313
	Derivative financial instruments—liabilities		—		—		—		—
	Total	$	315	$	17,313	$	—	$	17,628
	At March 31, 2015
	Investment, gross	$	—	$	—	$	—	$	—
	Derivative financial instruments—assets		—		19,406		—		19,406
	Derivative financial instruments—liabilities		—		—		—		—
	Total	$	—	$	19,406	$	—	$	19,406
	There were no movements between Levels 1 and 2 during the three months ended March 31, 2015. The Company has not owned any Level 3 assets or liabilities since 2012.
	Additional Fair Value Disclosures — The Company had 5,075 outstanding shares of Series A Cumulative Redeemable Preferred Stock (“Series A Preferred Stock”) (see Note 8 — Redeemable Preferred Stock and Warrants) at March 31, 2015. The obligation to redeem the preferred shares is reflected as debt (“mandatorily redeemable preferred stock”) in the condensed consolidated balance sheet (see Note 8 — Redeemable Preferred Stock and Warrants). The fair value and the carrying value of these securities at December 31, 2014 were $79.8 million and $64.0 million, respectively. The fair value and carrying value of these securities at March 31, 2015 is $82.2 million and $66.6 million, respectively. The fair value was determined by discounting the cash flows over the remaining life of the securities utilizing a LIBOR interest rate and a risk premium of approximately 10% and 11% at December 31, 2014 and March  31, 2015, respectively, which were based on companies with similar leverage ratios to PostRock. The Company has classified the valuation of these securities under Level 2 of the fair value hierarchy.
	The Company’s debt consists entirely of floating-rate facilities. The carrying amount of floating-rate debt approximates fair value because the interest rates paid on such debt are generally set for periods of six months or shorter.

Investment

Investment	3 Months Ended
	Mar. 31, 2015
Investment [Abstract]
Investment	Note 5 — Investment
	The Company elected the fair value option to account for its interest in SPP at inception. The fair value option was chosen as the Company determined that the market price of SPP’s publicly traded interests provided a more accurate fair value measure of the Company’s investment in SPP. The Company has not elected the fair value option for any of its other assets or  liabilities. During the first quarter of 2015, the Company sold the remaining units in SPP and recorded a realized gain of $313,000 as shown in the table below.
	The following table presents the mark-to-market and realized gains on the Company’s investment (recorded as a component of other income in the condensed consolidated statements of operations):
		Three Months Ended March 31,
		2014		2015
		(in thousands)
	Mark-to-market gain (loss) on investment	$	1,619	$	-24
	Realized gain		—		313
	The following table presents the Company’s investment in SPP at gross fair value, and the valuation allowance on SPP investment, which includes certain proceeds received from the settlement agreement as described below (presented net in the consolidated balance sheets):
		December 31,		March 31,
		2014		2015
		(in thousands)
	Investment, at gross fair value	$	315	$	—
	Valuation allowance on investment		-315		—

Asset_Retirement_Obligations

Asset Retirement Obligations	3 Months Ended
	Mar. 31, 2015
Asset Retirement Obligations [Abstract]
Asset Retirement Obligations	Note 6 — Asset Retirement Obligations
	The following table reflects the changes to asset retirement obligations for the periods indicated:
		Three Months Ended March 31,
		2014		2015
		(in thousands)
	Asset retirement obligations at beginning of period	$	13,228	$	14,017
	Liabilities incurred		17		—
	Liabilities settled		-22		-117
	Accretion		256		224
	Asset retirement obligations at end of period		13,479		14,124
	Current portion of asset retirement obligations		134		134
	Noncurrent portion of asset retirement obligations	$	13,345	$	13,990

LongTerm_Debt

Long-Term Debt	3 Months Ended
	Mar. 31, 2015
Long-Term Debt [Abstract]
Long-Term Debt	Note 7 — Long-Term Debt
	The Company has a $200 million senior secured revolving credit facility (the “Borrowing Base Facility”) with the following outstanding balances:
		December 31,		March 31,
		2014		2015
		(in thousands)
	Borrowing Base Facility	$	83,000	$	83,500
	Less current maturities		—		—
	Total long-term debt	$	83,000	$	83,500
	With outstanding borrowings of $83.5 million and letters of credit of $1.4 million,  $30.1 million was available for additional borrowings at March 31, 2015. The Company is currently in discussion with its lenders regarding the redetermination of the Borrowing Base Facility that is to be effective as of May 1, 2015.  The terms of the Borrowing Base Facility are described within Note 10 of Item 8. Financial Statements and Supplementary Data in the 2014 10-K.
	The Company was in compliance with all of its financial covenants under the Borrowing Base Facility at March 31, 2015.

Redeemable_Preferred_Stock_and

Redeemable Preferred Stock and Warrants	3 Months Ended
	Mar. 31, 2015
Redeemable Preferred Stock and Warrants [Abstract]
Redeemable Preferred Stock and Warrants	Note 8 — Redeemable Preferred Stock and Warrants
	Prior to June 30, 2016, the Company may accrue dividends rather than pay them in cash for all outstanding Series A Preferred Stock. Whenever dividends are accrued on a quarterly dividend payment date, the liquidation preference of the Series A Preferred Stock is increased by the amount of the accrued dividends and additional warrants to purchase shares of PostRock common stock are issued. The Company records the increase in liquidation preference and the issuance of additional warrants by allocating their relative fair values to the amount of accrued dividends. The allocation results in an increase to the Company’s mandatorily redeemable preferred stock related to the Series A Preferred Stock and an increase to additional paid in capital related to the additional warrants issued. The increase to additional paid in capital related to additional warrants issued for dividends paid in kind was $817,000 during the three months ended March 31, 2015.  The following table summarizes changes in the Series A Preferred Stock and associated warrants:
				Number of	Liquidation
		Carrying Value		Outstanding	Value of		Number of	Weighted Average
		of Series A		Series A	Series A		Outstanding	Exercise Price of
		Preferred Stock		Preferred Shares	Preferred Stock		Warrants	Warrants
		(in thousands except share, warrant and per unit data)
	31-Dec-14	$	63,954	5,075	$	79,760	3,301,249	$	13.00
	Accrued dividends		1,575	—		2,393	1,076,653		2.22
	Accretion		1,096	—		—	—		—
	31-Mar-15	$	66,625	5,075	$	82,153	4,377,902	$	10.35

Equity_and_Earnings_per_Share

Equity and Earnings per Share	3 Months Ended
	Mar. 31, 2015
Equity and Earnings per Share [Abstract]
Equity and Earnings per Share	Note 9 — Equity and Earnings per Share
	Share-Based Payments — The Company recorded share based compensation expense of $105,000 and $241,000 for the three months ended March 31, 2014 and 2015, respectively. Total share-based compensation to be recognized on unvested stock awards and options at March 31, 2015, is $590,000 over a weighted average period of one year. The following table summarizes option and restricted awards granted during 2015 and their associated valuation assumptions:
			Weighted
		Number of	fair value per		Weighted		Weighted	Weighted
		awards granted	option or share		exercise price		risk free rate	volatility
	Restricted Stock Awards
	First quarter 2015 director awards (1)	3,750	$	3.04		n/a	n/a	n/a
	________
		-1	Awards vest immediately.
	Income/(Loss) per Share — A reconciliation of the denominator (number of shares) used in the basic and diluted per share calculations for the periods indicated is as follows:
		Three Months Ended March 31,
		2014	2015
	Denominator for basic earnings per share	3,101,512	7,716,847
	Effect of potentially dilutive securities
	Warrants	—	—
	Denominator for diluted earnings per share	3,101,512	7,716,847
	Securities excluded from earnings per share calculation due to antidilutive effect
	Stock options	209,291	255,561
	Warrants	2,038,596	4,377,902
	Common Stock Issuance — The Company had an effective universal shelf registration statement on Form S-3 until March of 2015. Pursuant to the registration statement, we implemented an at-the-market program under which shares of our common stock could be sold.  In March 2015, our Board of Directors suspended the program. There were sales of 28,416 shares of common stock for net proceeds of $134,000 in the first two months of the year.

Commitments_and_Contingencies

Commitments and Contingencies	3 Months Ended
	Mar. 31, 2015
Commitments and Contingencies [Abstract]
Commitments and Contingencies	Note 10 — Commitments and Contingencies
	Litigation — The Company is subject, from time to time, to certain legal proceedings and claims in the ordinary course of conducting its business. It records a liability related to its legal proceedings and claims when it has determined that it is probable that it will be obligated to pay and the related amount can be reasonably estimated. The Company currently believes that there are no pending legal proceedings in which it is currently involved which have a reasonable possibility of materially affecting its financial position, results of operations or cash flows in an adverse manner.
	Contractual Commitments —  The Company has numerous contractual commitments in the ordinary course of business including debt service requirements, operating leases and purchase obligations. During the three months ended March 31, 2015, we have not entered into any significant contractual commitments that would increase the amounts included in our outstanding contractual commitments table at December 31, 2014.

Profit_Sharing_and_Deferred_Co

Profit Sharing and Deferred Compensation Plans	3 Months Ended
	Mar. 31, 2015
Profit Sharing and Deferred Compensation Plans [Abstract]
Profit Sharing and Deferred Compensation Plans
	Note 11 — Profit sharing and deferred compensation plans
	401K plan — Substantially all of the Company’s employees are eligible to participate in a profit sharing plan under Section 401(k) of the Internal Revenue Code (the “401K plan”). Prior to 2013, employer matching contributions to the 401K plan were made in cash. Beginning in 2013, employer matching contributions to the 401K plan may be made in Company common stock. In general, the Company issues common stock to fund its matching contributions although, from time to time, purchases of common stock on the open market by the 401K plan trust may occur if funds are available as a result of forfeitures.  During the three months ended March 31, 2015,  34,789 shares of common stock were contributed to the 401K plan, of which 34,690 shares were issued by the Company.
	The following table presents the expense incurred by the Company related to the 401K plan which is reflected in the condensed consolidated statements of operations as a component of general and administrative expense:
		Three Months Ended March 31,
		2014		2015
		(in thousands)
	401(k) profit sharing plan cost	$	149	$	150
	Deferred compensation plan — Effective January 1, 2013, the Company established a deferred compensation plan that permits members of its board and certain employees to defer part or all of their eligible compensation. The Company issues common stock into a rabbi trust created to hold the assets associated with the plan. A participant’s deferred compensation is credited with earnings, gains and losses based on the Company’s common stock, the only investment option currently available under the plan. The Company may also make discretionary employer credits in an amount it determines each plan year. Distributions to participants will be made in shares of the Company’s common stock. Company shares held in the rabbi trust are recorded as treasury stock in the condensed consolidated balance sheets. Changes in the fair value of the deferred compensation obligation, currently recorded as a component of paid-in-capital, are not recognized.
	The following table presents the number of shares and the related fair values of common stock contributed by the Company to the deferred compensation plan for the three months ended March 31, 2014 and 2015. The fair value of common stock is based on the market price of the stock on the preceding day that the stock is transferred and thus deemed to be a Level 1 measurement under the fair value hierarchy.
		Three Months Ended March 31,
		2014		2015
		(in thousands, except per share amounts)
	Shares of common stock contributed		915,809		12,743
	Fair value of common stock contributed	$	1,001	$	46

Restatement_of_Previously_Issu

Restatement of Previously Issued Consolidated Financial Statements	3 Months Ended
	Mar. 31, 2015
Restatement of Previously Issued Consolidated Financial Statements [Abstract]
Restatement of Previously Issued Consolidated Financial Statements	Note 12 — Restatement of Previously Issued Consolidated Financial Statements
	Prior to the issuance of the Company’s 2014 consolidated financial statements, the Company concluded that its previously issued 2010, 2011, 2012 and 2013 consolidated financial statements should be restated because of a misinterpretation of the guidance around accounting for its Series A Preferred Stock issued in September 2010.
	Background of Restatement – As discussed further in Note 12 of Item 8. Financial Statements and Supplementary Data in the 2014 10-K, on September 21, 2010 and from time to time thereafter, the Company issued to White Deer Series A Preferred Stock, Series B Preferred Stock and warrants to purchase shares of the Company’s common stock in exchange for cash. The Series A Preferred Stock was recorded outside of permanent equity and liabilities, in the Company’s consolidated balance sheet because the settlement provisions of the warrants allowed White Deer to “net exercise” the warrants by permitting White Deer to pay the exercise price of the warrant by delivering the Series A Preferred Stock with a liquidation preference equal to the exercise price that would otherwise be due from White Deer in cash. Although the terms of the Series A Preferred Stock has a mandatory redemption date attributed to it, the Company believed this provision associated with the warrants excluded the Series A Preferred Stock from the definition of mandatorily redeemable preferred stock under FASB ASC 480, “Distinguishing Liabilities from Equity.”  The Company now believes that under U.S. generally accepted accounting principles, because the warrants are detachable, and thus are separate from the Series A Preferred Stock, the features of the warrants cannot be considered when evaluating the classification of the Series A Preferred Stock, and the Company therefore believes that the Series A Preferred Stock should have been classified as a liability for all periods from its issuance date.
	Impact of the Restatement - The effect of the restatement on the Company’s consolidated balance sheets for each quarter and annual period end, beginning with September 30, 2010, consists of reclassifications of the Series A Preferred Stock from temporary equity to a liability.  Additionally, dividends and accretion, originally taken to additional paid-in capital, have been reclassified to interest expense on the statement of operations. While these non-cash reclassifications have the effect of reducing net income (or increasing the net loss) in each period, they have no material impact on total stockholders’ equity, net income (loss) attributable to common stockholders, net income (loss) per common share or cash flows.
	Details of the restatement for the quarter ending March 31, 2014 are as follows:
		For the three months ended March 31, 2014
		As Reported		Adjustment		Restated
		(in thousands, except per share data)
	Operating loss	$	703	$	—	$	703
	Other income (expense)
	Loss from derivative financial instruments		-5,115		—		-5,115
	Gain on investment		1619		—		1,619
	Interest expense, net		-3,530		-1,299		-4,829
	Total		-7,026		-1,299		-8,325
	Loss before income taxes		-6,323		-1,299		-7,622
	Income taxes		—		—		—
	Net Loss		-6,323		-1,299		-7,622
	Preferred stock dividends		-929		929		—
	Accretion of redeemable preferred stock		-370		370		—
	Net Loss attributable to common stockholders	$	-7,622	$	—	$	-7,622
	Net loss per common share
	Basic	$	-2.46	$	—	$	-2.46
	Diluted	$	-2.46	$	—	$	-2.46
	Weighted average common shares outstanding
	Basic		3,102		—		3,102
	Diluted		3,102		—		3,102
		For the three months ended March 31, 2014
		As Reported		Adjustment		Restated
		(in thousands, except per share data)
	Cash flows from operating activities
	Net loss	$	-6,323	$	-1,299	$	-7,622
	Adjustments to reconcile net loss to net cash flows from operating activities
	Depreciation, depletion and amortization		6,902				6,902
	Share-based and other compensation		968				968
	Amortization of deferred loan costs		129		—		129
	(Gain) loss derivative financial instruments		5,115		—		5,115
	Settlement of derivative financial instruments		-2,507		—		-2,507
	Gain on disposal of assets		-19		—		-19
	Gain on investment		-1,619		—		-1,619
	Other non-cash changes to items affecting net loss		2,566		1,299		3,865
	Changes in operating assets and liabilities						—
	Accounts receivable		-1,528		—		-1,528
	Accounts payable		-1,407		—		-1,407
	Other		-758		—		-758
	Net cash flows from operating activities		1,519		—		1,519
	Cash flows used in investing activities
	Restricted cash		-23		—		-23
	Expenditures for equipment, development and leasehold		-4,430		—		-4,430
	Proceeds from sale of assets		59		—		59
	Net cash flows used in investing activities		-4,394		—		-4,394
	Cash flows from financing activities
	Proceeds from debt		19,000		—		19,000
	Repayments of debt		-16,000		—		-16,000
	Debt and equity financing costs		-11		—		-11
	Net cash flows from financing activities		2,989		—		2,989
	Net increase in cash and cash equivalents		114		—		114
	Cash and equivalents beginning of period		37		—		37
	Cash and equivalents end of period	$	151	$	—	$	151

Other_Balance_Sheet_Items_Tabl

Other Balance Sheet Items (Tables)	3 Months Ended
	Mar. 31, 2015
Other Balance Sheet Items [Abstract]
Other Balance Sheet Items
		December 31,		March 31,
		2014		2015
		(in thousands)
	Other current assets
	Prepaid fees and deposits	$	975	$	274
	Other		56		45
	Total	$	1,031	$	319
	Other noncurrent assets, net
	Deferred financing costs	$	1,126	$	985
	Noncurrent deposits and other		453		451
	Total	$	1,579	$	1,436
	Accrued expenses and other
	Interest	$	26	$	285
	Employee-related costs and benefits		1,870		1,832
	Non-income related taxes		40		636
	Fees for services		316		175
	Asset retirement obligations		134		134
	Other		897		1,093
	Total	$	3,283	$	4,155
	Other noncurrent liabilities
	Other	$	1	$	—
	Total	$	1	$	—

Derivative_Financial_Instrumen1

Derivative Financial Instruments (Tables)	3 Months Ended
	Mar. 31, 2015
Derivative Financial Instruments [Abstract]
Derivative Financial Instruments on Consolidated Balance Sheets
				December 31,			March 31,
	Derivative Financial Instruments		Balance Sheet location	2014			2015
				(in thousands)
	Commodity contracts		Current derivative financial instrument asset	$	11,151		$	12,407
	Commodity contracts		Long-term derivative financial instrument asset		6,162			6,999
				$	17,313		$	19,406
Gains and Losses Associated with Derivative Financial Instruments
		Three Months Ended March 31,
		2014			2015
		(in thousands)
	Realized gains (losses)	$	-2,507		$	3,091
	Unrealized gains (losses)		-2,608			2,093
	Total gain (loss) from derivative financial instruments	$	-5,115		$	5,184
Reconciliation of Gross Amounts to Net Amounts
		December 31,			March 31,
		2014			2015
		(in thousands)
	Derivative Assets
	Gross amounts of recognized assets	$	11,151		$	12,407
	Gross amounts offset in the balance sheet		6,162			6,999
	Net amounts of assets presented in the balance sheet		17,313			19,406
	Gross amounts not offset in the balance sheet		-17,313			-19,406
	Net amount	$	—		$	—
Estimated Volumes, Fixed Prices and Fair Values Attributable to All of Company Oil and Gas Derivative Contracts
		Remainder of			Year Ending December 31,
		2015			2016			Total
		($ in thousands, except per unit data)
	Natural Gas Swaps
	Contract volumes (MMBtu)		6,737,670			7,814,028			14,551,698
	Weighted-average fixed price per MMBtu	$	4.01		$	4.01		$	4.01
	Fair value, net	$	8,242		$	6,928		$	15,170
	Crude Oil Swaps
	Contract volumes (Bbl)		53,676			65,568			119,244
	Weighted-average fixed price per Bbl	$	92.73		$	90.33		$	91.41
	Fair value, net	$	2,152		$	2,084		$	4,236
	Total fair value, net	$	10,394		$	9,012		$	19,406

Fair_Value_Measurements_Tables

Fair Value Measurements (Tables)	3 Months Ended
	Mar. 31, 2015
Fair Value Measurements [Abstract]
Assets and Liabilities Measured at Fair Value on Recurring Basis
								Total Net Fair
		Level 1		Level 2		Level 3		Value
		(in thousands)
	At December 31, 2014
	Investment, gross	$	315	$	—	$	—	$	315
	Derivative financial instruments—assets		—		17,313		—		17,313
	Derivative financial instruments—liabilities		—		—		—		—
	Total	$	315	$	17,313	$	—	$	17,628
	At March 31, 2015
	Investment, gross	$	—	$	—	$	—	$	—
	Derivative financial instruments—assets		—		19,406		—		19,406
	Derivative financial instruments—liabilities		—		—		—		—
	Total	$	—	$	19,406	$	—	$	19,406

Investment_Tables

Investment (Tables)	3 Months Ended
	Mar. 31, 2015
Investment [Abstract]
Effect of Mark-to-Market and Realized Gains on Investment
		Three Months Ended March 31,
		2014		2015
		(in thousands)
	Mark-to-market gain (loss) on investment	$	1,619	$	-24
	Realized gain		—		313
Investment at Gross Fair Value and Valuation Allowance
		December 31,		March 31,
		2014		2015
		(in thousands)
	Investment, at gross fair value	$	315	$	—
	Valuation allowance on investment		-315		—

Asset_Retirement_Obligations_T

Asset Retirement Obligations (Tables)	3 Months Ended
	Mar. 31, 2015
Asset Retirement Obligations [Abstract]
Schedule of Changes in Asset Retirement Obligations
		Three Months Ended March 31,
		2014		2015
		(in thousands)
	Asset retirement obligations at beginning of period	$	13,228	$	14,017
	Liabilities incurred		17		—
	Liabilities settled		-22		-117
	Accretion		256		224
	Asset retirement obligations at end of period		13,479		14,124
	Current portion of asset retirement obligations		134		134
	Noncurrent portion of asset retirement obligations	$	13,345	$	13,990

LongTerm_Debt_Tables

Long-Term Debt (Tables)	3 Months Ended
	Mar. 31, 2015
Long-Term Debt [Abstract]
Summary of Long-Term Debt
		December 31,		March 31,
		2014		2015
		(in thousands)
	Borrowing Base Facility	$	83,000	$	83,500
	Less current maturities		—		—
	Total long-term debt	$	83,000	$	83,500

Redeemable_Preferred_Stock_and1

Redeemable Preferred Stock and Warrants (Tables)	3 Months Ended
	Mar. 31, 2015
Redeemable Preferred Stock and Warrants [Abstract]
Changes in Series A Preferred Stock and Associated Warrants
				Number of	Liquidation
		Carrying Value		Outstanding	Value of		Number of	Weighted Average
		of Series A		Series A	Series A		Outstanding	Exercise Price of
		Preferred Stock		Preferred Shares	Preferred Stock		Warrants	Warrants
		(in thousands except share, warrant and per unit data)
	31-Dec-14	$	63,954	5,075	$	79,760	3,301,249	$	13.00
	Accrued dividends		1,575	—		2,393	1,076,653		2.22
	Accretion		1,096	—		—	—		—
	31-Mar-15	$	66,625	5,075	$	82,153	4,377,902	$	10.35

Equity_And_Earnings_per_Share_

Equity And Earnings per Share (Tables)	3 Months Ended
	Mar. 31, 2015
Equity and Earnings per Share [Abstract]
Option and Restricted Awards Granted and Associated Valuation Assumptions
			Weighted
		Number of	fair value per		Weighted		Weighted	Weighted
		awards granted	option or share		exercise price		risk free rate	volatility
	Restricted Stock Awards
	First quarter 2015 director awards (1)	3,750	$	3.04		n/a	n/a	n/a
	________
		-1	Awards vest immediately.
Reconciliation of Denominator Used in Basic and Diluted Per Share Calculations
		Three Months Ended March 31,
		2014	2015
	Denominator for basic earnings per share	3,101,512	7,716,847
	Effect of potentially dilutive securities
	Warrants	—	—
	Denominator for diluted earnings per share	3,101,512	7,716,847
	Securities excluded from earnings per share calculation due to antidilutive effect
	Stock options	209,291	255,561
	Warrants	2,038,596	4,377,902

Recovered_Sheet1

Profit Sharing And Deferred Compensation Plans (Tables)	3 Months Ended
	Mar. 31, 2015
Profit Sharing and Deferred Compensation Plans [Abstract]
Schedule of Profit Sharing Plan Expense
		Three Months Ended March 31,
		2014		2015
		(in thousands)
	401(k) profit sharing plan cost	$	149	$	150
Schedule of Deferred Compensation
		Three Months Ended March 31,
		2014		2015
		(in thousands, except per share amounts)
	Shares of common stock contributed		915,809		12,743
	Fair value of common stock contributed	$	1,001	$	46

Restatement_of_Previously_Issu1

Restatement of Previously Issued Consolidated Financial Statements (Tables)	3 Months Ended
	Mar. 31, 2015
Restatement of Previously Issued Consolidated Financial Statements [Abstract]
Schedule of Impact of Restatement
		For the three months ended March 31, 2014
		As Reported		Adjustment		Restated
		(in thousands, except per share data)
	Operating loss	$	703	$	—	$	703
	Other income (expense)
	Loss from derivative financial instruments		-5,115		—		-5,115
	Gain on investment		1619		—		1,619
	Interest expense, net		-3,530		-1,299		-4,829
	Total		-7,026		-1,299		-8,325
	Loss before income taxes		-6,323		-1,299		-7,622
	Income taxes		—		—		—
	Net Loss		-6,323		-1,299		-7,622
	Preferred stock dividends		-929		929		—
	Accretion of redeemable preferred stock		-370		370		—
	Net Loss attributable to common stockholders	$	-7,622	$	—	$	-7,622
	Net loss per common share
	Basic	$	-2.46	$	—	$	-2.46
	Diluted	$	-2.46	$	—	$	-2.46
	Weighted average common shares outstanding
	Basic		3,102		—		3,102
	Diluted		3,102		—		3,102
		For the three months ended March 31, 2014
		As Reported		Adjustment		Restated
		(in thousands, except per share data)
	Cash flows from operating activities
	Net loss	$	-6,323	$	-1,299	$	-7,622
	Adjustments to reconcile net loss to net cash flows from operating activities
	Depreciation, depletion and amortization		6,902				6,902
	Share-based and other compensation		968				968
	Amortization of deferred loan costs		129		—		129
	(Gain) loss derivative financial instruments		5,115		—		5,115
	Settlement of derivative financial instruments		-2,507		—		-2,507
	Gain on disposal of assets		-19		—		-19
	Gain on investment		-1,619		—		-1,619
	Other non-cash changes to items affecting net loss		2,566		1,299		3,865
	Changes in operating assets and liabilities						—
	Accounts receivable		-1,528		—		-1,528
	Accounts payable		-1,407		—		-1,407
	Other		-758		—		-758
	Net cash flows from operating activities		1,519		—		1,519
	Cash flows used in investing activities
	Restricted cash		-23		—		-23
	Expenditures for equipment, development and leasehold		-4,430		—		-4,430
	Proceeds from sale of assets		59		—		59
	Net cash flows used in investing activities		-4,394		—		-4,394
	Cash flows from financing activities
	Proceeds from debt		19,000		—		19,000
	Repayments of debt		-16,000		—		-16,000
	Debt and equity financing costs		-11		—		-11
	Net cash flows from financing activities		2,989		—		2,989
	Net increase in cash and cash equivalents		114		—		114
	Cash and equivalents beginning of period		37		—		37
	Cash and equivalents end of period	$	151	$	—	$	151

Basis_of_Presentation_Details

Basis of Presentation (Details)	3 Months Ended
	Mar. 31, 2015
	county
Basis of Presentation [Abstract]
Number of counties	15

Other_Balance_Sheet_Items_Othe

Other Balance Sheet Items (Other Balance Sheet Items) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014
In Thousands, unless otherwise specified
Other current assets
Prepaid fees and deposits	$274	$975
Other	45	56
Total	319	1,031
Other noncurrent assets, net
Deferred financing costs	985	1,126
Noncurrent deposits and other	451	453
Total	1,436	1,579
Accrued expenses and other
Interest	285	26
Employee-related costs and benefits	1,832	1,870
Non-income related taxes	636	40
Fees for services	175	316
Asset retirement obligations	134	134	134
Other	1,093	897
Total	4,155	3,283
Other noncurrent liabilities
Other		1
Total		$1

Derivative_Financial_Instrumen2

Derivative Financial Instruments (Derivative Financial Instruments on Consolidated Balance Sheets) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Derivative Financial Instruments [Abstract]
Current derivative financial instrument asset	$12,407	$11,151
Long-term derivative financial instrument asset	6,999	6,162
Net amounts of assets presented in the balance sheet	$19,406	$17,313

Derivative_Financial_Instrumen3

Derivative Financial Instruments (Gains and Losses Associated with Derivative Financial Instruments) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Derivative Financial Instruments [Abstract]
Realized gains (losses)	$3,091	($2,507)
Unrealized gains (losses)	2,093	-2,608
Total gain (loss) from derivative financial instruments	$5,184	($5,115)

Derivative_Financial_Instrumen4

Derivative Financial Instruments (Reconciliation of Gross Amounts to Net Amounts) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Derivative Financial Instruments [Abstract]
Gross amounts of recognized assets	$12,407	$11,151
Gross amounts offset in the balance sheet	6,999	6,162
Net amounts of assets presented in the balance sheet	19,406	17,313
Gross amounts not offset in the balance sheet	-19,406	-17,313
Net amount

Derivative_Financial_Instrumen5

Derivative Financial Instruments (Estimated Volumes, Fixed Prices and Fair Values Attributable to All of Company Oil and Gas Derivative Contracts) (Details) (Not Designated as Hedging Instrument [Member], USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015
	MMBTU
Derivatives, Fair Value [Line Items]
Fair value, net	$19,406
NYMEX Swap – Natural Gas Remainder of 2015 [Member]
Derivatives, Fair Value [Line Items]
Contract volumes (MMBtu)	6,737,670
Weighted-average fixed price per MMBtu	4.01
Fair value, net	8,242
NYMEX Swap – Natural Gas 2016 [Member]
Derivatives, Fair Value [Line Items]
Contract volumes (MMBtu)	7,814,028
Weighted-average fixed price per MMBtu	4.01
Fair value, net	6,928
NYMEX Swap – Oil Remainder of 2015 [Member]
Derivatives, Fair Value [Line Items]
Contract volumes (Bbl)	53,676
Weighted-average fixed price per Bbl	92.73
Fair value, net	2,152
NYMEX Swap – Oil 2016 [Member]
Derivatives, Fair Value [Line Items]
Contract volumes (Bbl)	65,568
Weighted-average fixed price per Bbl	90.33
Fair value, net	2,084
Remainder of 2015 [Member]
Derivatives, Fair Value [Line Items]
Fair value, net	10,394
2016 [Member]
Derivatives, Fair Value [Line Items]
Fair value, net	9,012
Natural Gas Swaps [Member]
Derivatives, Fair Value [Line Items]
Contract volumes (MMBtu)	14,551,698
Weighted-average fixed price per MMBtu	4.01
Fair value, net	15,170
Crude Oil Swaps [Member]
Derivatives, Fair Value [Line Items]
Contract volumes (Bbl)	119,244
Weighted-average fixed price per Bbl	91.41
Fair value, net	$4,236

Fair_Value_Measurements_Narrat

Fair Value Measurements (Narrative) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Fair Value Measurements [Line Items]
Mandatorily redeemable preferred stock, carrying value	$66,625,000	$63,954,000
Series A Preferred Stock [Member]
Fair Value Measurements [Line Items]
Preferred stock, shares outstanding	5,075	5,075
Mandatorily redeemable preferred stock, fair value	82,200,000	79,800,000
Mandatorily redeemable preferred stock, carrying value	$66,625,000	$63,954,000
LIBOR interest rate and risk premium used to discount cash flows for determining fair value	11.00%	10.00%
Class B Units [Member] | SPP [Member]
Fair Value Measurements [Line Items]
Equity investment member interest number		224,850
Fair value, per unit		$1.40

Fair_Value_Measurements_Assets

Fair Value Measurements (Assets and Liabilities Measured at Fair Value on Recurring Basis) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative financial instruments-assets	$12,407	$11,151
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment, gross		315
Derivative financial instruments-assets	19,406	17,313
Assets and liabilities fair value, Total	19,406	17,628
Fair Value, Measurements, Recurring [Member] | Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment, gross		315
Assets and liabilities fair value, Total		315
Fair Value, Measurements, Recurring [Member] | Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative financial instruments-assets	19,406	17,313
Assets and liabilities fair value, Total	$19,406	$17,313

Investment_Effect_of_MarktoMar

Investment (Effect of Mark-to-Market and Realized Gains on Investment) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Fair Value, Option, Quantitative Disclosures [Line Items]
Mark-to-market gain (loss) on investment	$289	$1,619
Equity Method Investments [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Mark-to-market gain (loss) on investment	-24	1,619
Realized gain	$313

Investment_Investment_at_Gross

Investment (Investment at Gross Fair Value and Valuation Allowance) (Details) (Equity Method Investments [Member], USD $)	Dec. 31, 2014
In Thousands, unless otherwise specified
Equity Method Investments [Member]
Fair Value, Option, Quantitative Disclosures [Line Items]
Investment, at gross fair value	$315
Valuation allowance on investment	($315)

Asset_Retirement_Obligations_S

Asset Retirement Obligations (Schedule of Changes in Asset Retirement Obligations) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Asset Retirement Obligations [Abstract]
Asset retirement obligations at beginning of period	$14,017	$13,228
Liabilities incurred		17
Liabilities settled	-117	-22
Accretion	224	256
Asset retirement obligations at end of period	14,124	13,479
Current portion of asset retirement obligations	134	134	134
Noncurrent portion of asset retirement obligations	$13,990	$13,345	$13,884

LongTerm_Debt_Narrative_Detail

Long-Term Debt (Narrative) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$200,000,000
Credit facility, amount available for additional borrowings	30,100,000
Secured Debt [Member]
Line of Credit Facility [Line Items]
Credit facility, outstanding borrowings	83,500,000	83,000,000
Letters Of Credit [Member]
Line of Credit Facility [Line Items]
Credit facility, outstanding borrowings	$1,400,000

LongTerm_Debt_Summary_of_LongT

Long-Term Debt (Summary of Long-Term Debt) (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Line of Credit Facility [Line Items]
Total long-term debt	$83,500	$83,000
Secured Debt [Member]
Line of Credit Facility [Line Items]
Borrowing Base Facility	83,500	83,000
Total long-term debt	$83,500	$83,000

Redeemable_Preferred_Stock_and2

Redeemable Preferred Stock and Warrants (Narrative) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015
Redeemable Preferred Stock and Warrants [Abstract]
Issuance of warrants	$817

Redeemable_Preferred_Stock_and3

Redeemable Preferred Stock and Warrants (Changes in Series A Preferred Stock and Associated Warrants) (Details) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015
Class of Stock [Line Items]
Carrying Value of Series A Preferred Stock, Beginning balance	$63,954
Carrying Value of Series A Preferred Stock, Ending balance	66,625
Number of Outstanding Warrants, Beginning balance	3,301,249
Number of Outstanding Warrants, Accrued dividends	1,076,653
Number of Outstanding Warrants, Ending Balance	4,377,902
Weighted Average Exercise Price of Warrants, Beginning Balance	$13
Weighted Average Exercise Price of Warrants, Accrued dividends	$2.22
Weighted Average Exercise Price of Warrants, Ending Balance	$10.35
Series A Preferred Stock [Member]
Class of Stock [Line Items]
Carrying Value of Series A Preferred Stock, Beginning balance	63,954
Carrying Value of Series A Preferred Stock, Accrued dividends	1,575
Carrying Value of Series A Preferred Stock, Accretion	1,096
Carrying Value of Series A Preferred Stock, Ending balance	66,625
Beginning balance, preferred shares	5,075
Ending balance, preferred shares	5,075
Liquidation Value of Series A Preferred Stock, Beginning balance	79,760
Liquidation Value of Series A Preferred Stock, Accrued dividends	2,393
Liquidation Value of Series A Preferred Stock, Ending balance	$82,153

Recovered_Sheet2

Equity and Earnings per Share (Narrative) (Details) (USD $)	2 Months Ended	3 Months Ended
	Feb. 28, 2015	Mar. 31, 2015	Mar. 31, 2014
Equity and Earnings per Share [Abstract]
Share based compensation expense		$241,000	$105,000
Total share-based compensation to be recognized on unvested stock awards and options		590,000
Share-based compensation to be recognized over weighted average period		1 year
Issuance of stock, shares	28,416
Proceeds from common shares	$134,000	$134,000

Equity_and_Earnings_per_Share_1

Equity and Earnings per Share (Option and Restricted Awards Granted and Associated Valuation Assumptions) (Details) (Restricted Stock Director Awards [Member], USD $)	3 Months Ended
	Mar. 31, 2015
Restricted Stock Director Awards [Member]
Option awards granted and their associated valuation assumptions
Number of awards granted	3,750	[1]
Weighted fair value per option or share	$3.04	[1]
[1]	Awards vest immediately.

Equity_and_Earnings_per_Share_2

Equity and Earnings per Share (Reconciliation of Denominator Used in Basic and Diluted Per Share Calculations) (Details)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Denominator for basic earnings per share	7,716,847	3,101,512
Denominator for diluted earnings per share	7,716,847	3,101,512
Stock Options [Member]
Securities excluded from earnings per share calculation
Securities excluded from earnings per share calculation due to antidilutive effect	255,561	209,291
Antidilutive Warrants [Member]
Securities excluded from earnings per share calculation
Securities excluded from earnings per share calculation due to antidilutive effect	4,377,902	2,038,596

Profit_Sharing_and_Deferred_Co1

Profit Sharing and Deferred Compensation Plans (Narrative) (Details)	3 Months Ended
	Mar. 31, 2015
Profit Sharing and Deferred Compensation Plans [Abstract]
Number of shares transferred to profit sharing plan	34,789
Shares issued to 401(k) plan	34,690

Profit_Sharing_and_Deferred_Co2

Profit Sharing and Deferred Compensation Plans (Schedule of Profit Sharing Plan Expense) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Profit Sharing and Deferred Compensation Plans [Abstract]
401(k) profit sharing plan cost	$150	$149

Profit_Sharing_and_Deferred_Co3

Profit Sharing and Deferred Compensation Plans (Schedule of Deferred Compensation) (Details) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Profit Sharing and Deferred Compensation Plans [Abstract]
Shares of common stock contributed	12,743	915,809
Fair value of common stock contributed	$46	$1,001

Restatement_of_Previously_Issu2

Restatement of Previously Issued Consolidated Financial Statements (Schedule of Impact of Restatement on Consolidated Statements of Operations) (Details) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Operating income (loss)	($7,816)	$703
Other income (expense)
Loss from derivative financial instruments	5,184	-5,115
Gain on investment	289	1,619
Interest expense, net	-4,341	-4,829
Total	1,440	-8,325
Loss before income taxes	-6,376	-7,622
Income taxes
Net income (loss)	-6,376	-7,622
Net loss attributable to common stockholders	-6,376	-7,622
Net loss per common share
Basic	($0.83)	($2.46)
Diluted	($0.83)	($2.46)
Weighted average common shares outstanding
Basic	7,716,847	3,101,512
Diluted	7,716,847	3,101,512
As Reported [Member]
Operating income (loss)		703
Other income (expense)
Loss from derivative financial instruments		-5,115
Gain on investment		1,619
Interest expense, net		-3,530
Total		-7,026
Loss before income taxes		-6,323
Net income (loss)		-6,323
Preferred stock dividends		-929
Accretion of redeemable preferred stock		-370
Net loss attributable to common stockholders		-7,622
Net loss per common share
Basic		($2.46)
Diluted		($2.46)
Weighted average common shares outstanding
Basic		3,102,000
Diluted		3,102,000
Adjustment [Member]
Other income (expense)
Interest expense, net		-1,299
Total		-1,299
Loss before income taxes		-1,299
Net income (loss)		-1,299
Preferred stock dividends		929
Accretion of redeemable preferred stock		$370

Restatement_of_Previously_Issu3

Restatement of Previously Issued Consolidated Financial Statements (Schedule of Impact of Restatement on Consolidated Statements of Cash Flows) (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Cash flows from operating activities
Net loss	($6,376)	($7,622)
Adjustments to reconcile net loss to net cash flows from operating activities
Depreciation, depletion and amortization	7,299	6,902
Share-based and other compensation	487	968
Amortization of deferred loan costs	141	129
(Gain) loss on derivative financial instruments	-5,184	5,115
Settlement of derivative financial instruments	3,091	-2,507
Gain on disposal of assets	-57	-19
Gain on investment	-289	-1,619
Other non-cash changes to items affecting net loss	3,489	3,865
Changes in operating assets and liabilities
Accounts receivable	4,215	-1,528
Accounts payable	-1,851	-1,407
Other	603	-758
Net cash flows from operating activities	5,568	1,519
Cash flows from investing activities
Restricted cash		-23
Expenditures for equipment, development and leasehold	-6,551	-4,430
Proceeds from sale of assets	80	59
Net cash flows used in investing activities	-6,182	-4,394
Cash flows from financing activities
Proceeds from debt	13,500	19,000
Repayments of debt	-13,000	-16,000
Debt and equity financing costs		-11
Net cash flows from financing activities	634	2,989
Net increase in cash and cash equivalents	20	114
Cash and cash equivalents beginning of period	46	37
Cash and cash equivalents end of period	66	151
As Reported [Member]
Cash flows from operating activities
Net loss		-6,323
Adjustments to reconcile net loss to net cash flows from operating activities
Depreciation, depletion and amortization		6,902
Share-based and other compensation		968
Amortization of deferred loan costs		129
(Gain) loss on derivative financial instruments		5,115
Settlement of derivative financial instruments		-2,507
Gain on disposal of assets		-19
Gain on investment		-1,619
Other non-cash changes to items affecting net loss		2,566
Changes in operating assets and liabilities
Accounts receivable		-1,528
Accounts payable		-1,407
Other		-758
Net cash flows from operating activities		1,519
Cash flows from investing activities
Restricted cash		-23
Expenditures for equipment, development and leasehold		-4,430
Proceeds from sale of assets		59
Net cash flows used in investing activities		-4,394
Cash flows from financing activities
Proceeds from debt		19,000
Repayments of debt		-16,000
Debt and equity financing costs		-11
Net cash flows from financing activities		2,989
Net increase in cash and cash equivalents		114
Cash and cash equivalents beginning of period		37
Cash and cash equivalents end of period		151
Adjustment [Member]
Cash flows from operating activities
Net loss		-1,299
Adjustments to reconcile net loss to net cash flows from operating activities
Other non-cash changes to items affecting net loss		$1,299