PREMISES AND FIXED ASSETS, NET AND PREMISES HELD FOR SALE (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Property, Plant and Equipment, Net, by Type [Abstract]
Premises and fixed assets, gross	$ 59,522	$ 55,180
Less: accumulated depreciation and amortization	(34,809)	(30,854)
Premises and fixed assets, net	24,713	24,326
Depreciation and amortization expense	3,903	3,310	$ 2,223
Premises held for sale with aggregate recorded balance			1,379	$ 8,799
Proceeds from the sales of premises and fixed assets	0	11,791	75,899
Gain on sale of real estate	0	10,412	$ 68,183
Land [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Premises and fixed assets, gross	1,600	1,600
Buildings [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Premises and fixed assets, gross	10,934	10,828
Leasehold Improvements [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Premises and fixed assets, gross	23,154	22,657
Furniture, Fixtures and Equipment [Member]
Property, Plant and Equipment, Net, by Type [Abstract]
Premises and fixed assets, gross	$ 23,834	$ 20,095