6. LOANS - Summary of Loans Receivable on Nonaccrual Status (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Total loans receivable on nonaccrual status	$ 13,982	$ 13,405
Real Estate [Member]
Total loans receivable on nonaccrual status	13,839	13,246
Commercial
Total loans receivable on nonaccrual status			$ 11
Commercial | Real Estate [Member]
Total loans receivable on nonaccrual status	2,102	3,403
Construction and Land Development | Real Estate [Member]
Total loans receivable on nonaccrual status	328	319
Residential 1-4 Family | Real Estate [Member]
Total loans receivable on nonaccrual status	7,706	8,355
Multifamily | Real Estate [Member]
Total loans receivable on nonaccrual status	162	166
Farmland | Real Estate [Member]
Total loans receivable on nonaccrual status	3,541	1,003
Agriculture
Total loans receivable on nonaccrual status	83	83
Consumer Installment Loans
Total loans receivable on nonaccrual status	$ 49	$ 76