Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Cash flows from operating activities:
Net loss	$ (7,585)us-gaap_NetIncomeLoss	$ (13,073)us-gaap_NetIncomeLoss	$ (10,327)us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, depletion, amortization and accretion of asset retirement obligation	19,673	21,218	20,404
Impairment and abandonment of equipment and properties	1,708us-gaap_ImpairmentOfOilAndGasProperties	4,992us-gaap_ImpairmentOfOilAndGasProperties	4,988us-gaap_ImpairmentOfOilAndGasProperties
Dry hole costs			481us-gaap_ResultsOfOperationsDryHoleCosts
Gain on settlement of asset retirement obligation	(80)
Settlement of asset retirement obligation	(346)	(126)	(9)
Gain on sale of corporate assets and non-producing properties	77
Benefit for deferred taxes	(1,236)	(6,660)	(5,418)
Change in fair value of derivative contracts	(6,790)us-gaap_UnrealizedGainLossOnDerivatives	6,656us-gaap_UnrealizedGainLossOnDerivatives	7,933us-gaap_UnrealizedGainLossOnDerivatives
Stock-based compensation expense	789us-gaap_ShareBasedCompensation	744us-gaap_ShareBasedCompensation	1,341us-gaap_ShareBasedCompensation
Loss (gain) on sale of producing property		13	(1,669)
Changes in current assets and liabilities:
Decrease (Increase) in deposit held in escrow		282	(1)
Decrease (Increase) in accounts receivable	833	1,497	(1,082)
Decrease in other current assets	395	435	397
(Decrease) increase in accounts payable and accrued expenses	1,285	(3,265)	3,114
(Decrease) Increase in accrued production taxes	143	369	(684)
NET CASH PROVIDED BY OPERATING ACTIVITIES	8,712	13,082	19,468
Cash flows from investing activities:
Sales of corporate assets and non-producing properties	361
Payments to acquire and develop producing properties and equipment, net	(5,158)	(10,516)	(27,388)
Payments to acquire corporate and non-producing properties	(288)	(7)	(25)
Sales of oil and gas properties and equipment			1,640
NET CASH USED IN INVESTING ACTIVITIES	(5,085)	(10,523)	(25,773)
Cash flows from financing activities:
Net proceeds from sale of common stock	4,158
Dividends paid on preferred stock	(3,723)	(3,723)	(3,723)
Repayments on credit facility, net	(45,015)us-gaap_RepaymentsOfLinesOfCredit
Borrowings on credit facility	45,080us-gaap_ProceedsFromLinesOfCredit		5,450us-gaap_ProceedsFromLinesOfCredit
Payment of loan financing costs	(949)us-gaap_PaymentsOfFinancingCosts
Tax withholdings related to net share settlement of restricted stock awards	(44)	(107)	(30)
NET CASH PROVIDED BY (USED IN) FINANCING ACTIVITIES	(493)	(3,830)	1,697
Change in cash and cash equivalents	3,134	(1,271)	(4,608)
Cash and cash equivalents at beginning of period	2,799	4,070	8,678
CASH AND CASH EQUIVALENTS AT END OF PERIOD	5,933	2,799	4,070
Supplemental disclosure of cash and non-cash transactions:
Cash paid for interest	1,317us-gaap_InterestPaid	1,641us-gaap_InterestPaid	1,173us-gaap_InterestPaid
Interest capitalized	59us-gaap_InterestCostsCapitalized	80us-gaap_InterestCostsCapitalized	321us-gaap_InterestCostsCapitalized
Additions to developed properties included in current liabilities	3,275	1,671	2,265
Additions to developed properties for retirement obligations	605	(92)	12
Receivables due from joint- interest partners related to change in working interest			$ 657

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

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-Publisher FASB

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-SubTopic 10

-Section 45

-Paragraph 14

-Subparagraph (a)

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Amount of cash inflow from contractual arrangement with the lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(f))

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-Publisher SEC

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- Definition

The cash inflow to dispose of long-lived, physical assets and mineral interests in oil and gas properties used for normal oil and gas operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Publisher FASB

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-Topic 230

-SubTopic 10

-Section 45

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-Subparagraph (c)

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- Definition

The cash inflow from sale of other property, plant and equipment, used to produce goods or deliver services, and not otherwise defined in the taxonomy.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Investing Activities

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-Section 45

-Paragraph 12

-Subparagraph (c)

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- Definition

Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(f))

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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-Paragraph f

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-Publisher FASB

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- Definition

Dry hole costs from oil and gas producing activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 932

-SubTopic 360

-Section 25

-Paragraph 9

-Subparagraph (c)

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-Name Accounting Standards Codification

-Topic 932

-SubTopic 235

-Section 50

-Paragraph 23

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=8451039&loc=d3e62136-109447

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

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- Definition

The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, including options, swaps, futures, and forward contracts, held at each balance sheet date, that was included in earnings for the period.

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