PREMISES AND EQUIPMENT (Detail Textuals) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Dec. 31, 2018
Dec. 31, 2017
Property, Plant and Equipment [Abstract]        
Depreciation and amortization $ 404 $ 185 $ 721 $ 811