SEGMENTS AND MAJOR CUSTOMERS (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended												12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2013 Segment	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Number of operating segments													2
Segment Reporting Information, Results of operations [Abstract]
Total revenues													$ 33,647	$ 32,534	$ 30,958
Total operating expenses													32,965	33,769	27,913
Total interest expenses													276	193	304
Operating income (loss) from identified segments	692	359	118	(6,160)	(5,880)	(2,709)	(991)	(712)	(736)	(689)	(723)	(3,068)	(4,991)	(10,344)	(5,216)
General and administrative expenses													(5,673)	(9,109)	(8,261)
Add back Interest expenses													276	193	304
Other revenues and expenses:													(2,695)	849	(717)
Loss before income taxes and discontinued operations	(1,217)	(706)	367	(6,130)	(6,079)	(3,155)	624	(833)	(2,443)	1,022	420	(4,932)	(7,686)	(9,495)	(5,933)
Depreciation depletion and amortization expense [Abstract]
Total depreciation, depletion and amortization expense													13,898	15,457	14,593
Assets by segment [Abstract]
Total Assets	126,801				140,827				162,439				126,801	140,827	162,439
Oil and Gas [Member]
Segment Reporting Information, Results of operations [Abstract]
Total revenues													33,647	32,534	30,958
Total operating expenses													29,920	30,870	25,549
Total interest expenses													264	169	268
Operating income (loss) from identified segments													3,463	1,495	5,141
Add back Interest expenses													264	169	268
Depreciation depletion and amortization expense [Abstract]
Total depreciation, depletion and amortization expense													13,623	14,893	13,997
Assets by segment [Abstract]
Total Assets	97,418				93,839				109,141				97,418	93,839	109,141
Mineral properties [Member]
Segment Reporting Information, Results of operations [Abstract]
Total operating expenses													3,045	2,899	2,364
Total interest expenses													12	24	36
Operating income (loss) from identified segments													(3,057)	(2,923)	(2,400)
Add back Interest expenses													12	24	36
Depreciation depletion and amortization expense [Abstract]
Total depreciation, depletion and amortization expense													126	127	102
Assets by segment [Abstract]
Total Assets	20,739				20,747				20,755				20,739	20,747	20,755
Corporate [Member]
Depreciation depletion and amortization expense [Abstract]
Total depreciation, depletion and amortization expense													149	437	494
Assets by segment [Abstract]
Total Assets	8,644				26,241				32,543				8,644	26,241	32,543
Reportable Segment [Member]
Segment Reporting Information, Results of operations [Abstract]
Operating income (loss) from identified segments													$ 406	$ (1,428)	$ 2,741