XML 83 R61.htm IDEA: XBRL DOCUMENT v3.19.2
Income Taxes - Schedule of Effective Income Tax (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]    
Income tax benefit at federal statutory rate $ 218 $ 472
State income tax benefit, net of federal impact 37 38
Change in federal tax rate, net of state benefit [1] (5,440)
Change in state tax rate, net of federal benefit (435)  
Loss on debt to equity conversion (1,630)
Change in value of warrant 163
Effect of Sec. 382 Limitation (1,303) (29,803)
Incentive stock options and restricted stock not deductible for tax purposes 964
Percentage depletion carryover 4 138
Prior year true up 451 1,076
Other 50 76
Decrease in valuation allowance 815 34,109
Income tax benefit (expense)
[1] The change in the federal tax rate was due to the passage of Public Law 115-97 (Tax Cuts and Jobs Act). This resulted in a provisional reduction of the Company's deferred tax assets before valuation analysis primarily due to a reduction in the U.S. statutory rate from 35% to 21%.