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STOCKHOLDERS' EQUITY (Details 2) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Balances at the beginning of the period $ (454)  
Balances at the end of the period (280) $ (454)
Accumulated Net Unrealized Investment Gain (Loss) [Member]    
Accumulated Other Comprehensive Income (Loss) [Line Items]    
Balances at the beginning of the period (454) (30)
Other comprehensive loss before reclassifications 174 (424)
Amounts reclassified from accumulated other comprehensive income (loss) 0 0
Balances at the end of the period $ (280) $ (454)