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FEDERAL AND STATE CURRENT AND DEFERRED INCOME TAX - Difference Between Income Taxes at the Federal Statutory Rate and Effective Tax Rate (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Income Tax Disclosure [Abstract]    
Federal income tax (provision) benefit at statutory rate $ 697 $ (3,620)
Change in valuation allowance 529 36,055
Impact of U.S. tax reform 0 (35,570)
State taxes, net of federal benefit 0 319
Expired credits (1,056) 0
Other (223) (266)
Total income tax provision $ (53) $ (3,082)