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INCOME TAXES (Details 1) - USD ($)
$ in Thousands
Dec. 31, 2016
Dec. 31, 2015
Deferred tax assets:    
Net operating loss carryover $ 26,739 $ 19,947
Property and equipment 14,575 15,645
Percentage depletion and contribution carryovers 2,512 2,433
Alternative minimum tax credit carryover 706 706
Equity method investment and other 547 630
Deferred compensation liability 12 262
Asset retirement obligations 377 442
Stock-based compensation (44) 302
Total deferred tax assets 45,424 40,367
Deferred tax liabilities:    
Property and equipment
Oil price risk derivatives (538)
Other (4) (4)
Total deferred tax liabilities (4) (542)
Net deferred tax assets 45,420 39,825
Less valuation allowance (45,420) (39,825)
Net deferred tax asset