10. FAIR VALUES - Summary of Assets And Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2017	Dec. 31, 2016
Fair Value, Inputs, Level 2 [Member]
Impaired Loans	$ 70,011	$ 70,011
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | US Government Agencies
Available for sale investments	24,470	24,632
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | TaxableMunicipalsMember
Available for sale investments	2,287	2,292
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Corporate Bond Securities [Member]
Available for sale investments	3,789	3,749
Fair Value, Inputs, Level 2 [Member] | Fair Value, Measurements, Recurring [Member] | Mortgage Backed Securities
Available for sale investments	41,464	39,338
Fair Value, Inputs, Level 3 [Member]
Other real estate owned	10,161	10,655
Impaired Loans	23,036	24,504
Commercial Real Estate [Member] | Fair Value, Inputs, Level 3 [Member] | Nonrecurring Basis
Impaired Loans	49	49
Commercial Real Estate [Member] | Fair Value, Inputs, Level 3 [Member] | Nonrecurring Basis | Real Estate [Member]
Impaired Loans	3,241	4,762
Construction and Land Development | Fair Value, Inputs, Level 3 [Member] | Nonrecurring Basis | Real Estate [Member]
Impaired Loans	138	139
Residential 1-4 Family | Fair Value, Inputs, Level 3 [Member] | Nonrecurring Basis | Real Estate [Member]
Impaired Loans	4,524	4,360
Multifamily | Fair Value, Inputs, Level 3 [Member] | Nonrecurring Basis | Real Estate [Member]
Impaired Loans	731	301
Farmland | Fair Value, Inputs, Level 3 [Member] | Nonrecurring Basis | Real Estate [Member]
Impaired Loans	4,164	4,187
Agriculture | Fair Value, Inputs, Level 3 [Member] | Nonrecurring Basis
Impaired Loans	19	19
Consumer Installment Loans | Fair Value, Inputs, Level 3 [Member] | Nonrecurring Basis
Impaired Loans	$ 9	$ 32