XML 57 R44.htm IDEA: XBRL DOCUMENT v3.7.0.1
OIL AND GAS PRODUCING ACTIVITIES (Details 3) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Oil and Gas Property [Abstract]      
Oil and gas sales $ 5,746 $ 10,296 $ 32,379
Production costs (2,728) (7,352) (10,638)
Depreciation, depletion and amortization (2,529) (8,412) (14,685)
Impairment of oil and gas properties (9,568) (57,676)
Results of operations from oil and gas producing activities $ (9,079) $ (63,144) $ 7,056