Condensed Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Operating activities
Net income (loss) from continuing operations	$ (96)	$ 133
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities
Depreciation, depletion, and amortization	184	183
Amortization of loan fees-interest expense	2	1
Accretion of asset retirement obligation	35	36
Gain on asset sales	(45)	(16)
Stock based compensation	4	4
Changes in assets and liabilities:
Accounts receivable	(75)	(33)
Inventory and other assets	(55)	(200)
Accounts payable	50	(48)
Accrued and other current liabilities	(15)	18
Settlement on asset retirement obligation	(7)	(7)
Net cash provided by (used in) operating activities - continuing operations	(18)	71
Net cash provided by operating activities - discontinued operations		67
Net cash provided by (used in) operating activities	(18)	138
Investing activities
Additions to oil and gas properties	(11)	(32)
Proceeds from sale of oil and gas properties		3
Additions to other property and equipment		(19)
Proceeds from sale of other property and equipment		7
Proceeds from sale of materials inventory	150
Net cash provided by (used in) investing activities - continuing operations	139	(41)
Net cash provided by investing activities - discontinued operations		2,650
Net cash provided by investing activities	139	2,609
Financing activities
Repayment of borrowings	(12)	(116)
Proceeds from borrowings		100
Net cash used in financing activities	(12)	(16)
Net cash provided by (used in) financing activities - discontinued operations
Net cash used in financing activities	(12)	(16)
Net change in cash and cash equivalents	109	2,731
Cash and cash equivalents, beginning of period	3,115	185
Cash and cash equivalents, end of period	3,224	2,916
Supplemental cash flow information:
Cash interest payments	$ 1
Supplemental non-cash investing and financing activities:
Financed company vehicles		109
Capital expenditures included in accounts payable and accrued liabilities		$ 6

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- Definition

The cash outflow for exploration and development of oil and gas properties. It includes cash payments related to development of oil and gas wells drilled at previously untested geologic structures (to determine the presence of oil or gas) and wells drilled at sites where the presence of oil or gas has already been established (to extract the oil or gas).

+ References

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- Definition

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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(f))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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Balance Type:	debit
Period Type:	duration

- 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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of cash inflow for the sale of long-lived, physical assets used to produce goods and services and not intended for resale, classified as other.

+ References

+ Details

Name:	us-gaap_ProceedsFromSaleOfOtherPropertyPlantAndEquipment
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

The cash outflow during the period from the repayment of aggregate short-term and long-term debt. Excludes payment of capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 15
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3291-108585

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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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585

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Balance Type:	debit
Period Type:	duration

- References

No definition available.

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Balance Type:	na
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