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INCOME TAXES - Components of Income Tax Expenses (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Jun. 30, 2015
Jun. 30, 2014
Current year provision:        
Federal $ 56 $ 0 $ 41 $ 0
State 4 0 8 0
Current income tax expense (benefit) 60 0 49 0
Deferred tax expense        
Federal 257 575 977 828
State 4 8 10 10
Deferred tax expense (benefit) 261 583 987 838
Change in valuation allowance on deferred taxes 0 (583) 0 (838)
Net income tax expense $ 321 $ 0 $ 1,036 $ 0