LOANS: (Details 1) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Total loans receivable on nonaccrual status	$ 8,227	$ 7,564
Real Estate [Member]
Total loans receivable on nonaccrual status	7,793	6,448
Commercial | Real Estate [Member]
Total loans receivable on nonaccrual status	3,469	2,035
Construction and Land Development | Real Estate [Member]
Total loans receivable on nonaccrual status	210	470
Residential 1-4 Family | Real Estate [Member]
Total loans receivable on nonaccrual status	3,202	2,991
Multifamily | Real Estate [Member]
Total loans receivable on nonaccrual status	85	152
Farmland | Real Estate [Member]
Total loans receivable on nonaccrual status	827	800
Commercial Real Estate [Member]
Total loans receivable on nonaccrual status	411	1,065
Agriculture
Total loans receivable on nonaccrual status	3	3
Consumer Installment Loans
Total loans receivable on nonaccrual status	$ 20	$ 48