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INCOME TAXES - Components of Income Tax Expenses (Detail) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Current year provision (benefit):        
Federal $ (104) $ 0 $ (63) $ 0
State (1) 24 7 24
Current income tax expense (benefit) (105) 24 (56) 24
Deferred tax expense        
Federal 561 1,520 1,538 2,348
State 6 14 16 24
Deferred tax expense (benefit) 567 1,534 1,554 2,372
Change in valuation allowance on deferred taxes 0 (1,534) 0 (2,372)
Net income tax expense $ 462 $ 24 $ 1,498 $ 24