LOANS HELD FOR INVESTMENT, Nonaccrual Loans, Net of SBA Guarantee (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Dec. 31, 2016
Composition of Nonaccrual Loans, net of SBA guarantee [Abstract]
Nonaccrual loans	$ 3,671	$ 3,117
Period past due after which guaranteed portion of SBA loan is repurchased from investors	120 days
Loans Guaranteed by Government Agencies [Member]
Composition of Nonaccrual Loans, net of SBA guarantee [Abstract]
Nonaccrual loans	$ 1,834	742
Manufactured Housing [Member]
Composition of Nonaccrual Loans, net of SBA guarantee [Abstract]
Nonaccrual loans	488	800
Commercial Real Estate [Member] | Commercial Real Estate [Member]
Composition of Nonaccrual Loans, net of SBA guarantee [Abstract]
Nonaccrual loans	127	141
Commercial Real Estate [Member] | SBA 504 1st Trust Deed [Member]
Composition of Nonaccrual Loans, net of SBA guarantee [Abstract]
Nonaccrual loans	194	712
Commercial Real Estate [Member] | Land [Member]
Composition of Nonaccrual Loans, net of SBA guarantee [Abstract]
Nonaccrual loans	0	0
Commercial Real Estate [Member] | Construction [Member]
Composition of Nonaccrual Loans, net of SBA guarantee [Abstract]
Nonaccrual loans	0	0
Commercial [Member]
Composition of Nonaccrual Loans, net of SBA guarantee [Abstract]
Nonaccrual loans	1,780	31
SBA [Member]
Composition of Nonaccrual Loans, net of SBA guarantee [Abstract]
Nonaccrual loans	683	868
HELOC [Member]
Composition of Nonaccrual Loans, net of SBA guarantee [Abstract]
Nonaccrual loans	219	373
Single Family Real Estate [Member]
Composition of Nonaccrual Loans, net of SBA guarantee [Abstract]
Nonaccrual loans	180	192
Consumer [Member]
Composition of Nonaccrual Loans, net of SBA guarantee [Abstract]
Nonaccrual loans	$ 0	$ 0