LOANS: (Details 4) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Loans 30-59 Days Past Due	$ 3,994	$ 10,519
Loans 60-89 Days Past Due	1,607	1,886
Loans 90 or More Days Past Due	2,000	3,474
Total Past Due Loans	7,601	15,879
Current Loans	493,789	452,750
Total loans and leases	501,390	468,629
Real Estate [Member]
Loans 30-59 Days Past Due	3,800	10,370
Loans 60-89 Days Past Due	1,606	1,871
Loans 90 or More Days Past Due	1,976	3,360
Total Past Due Loans	7,382	15,601
Current Loans	430,687	400,715
Total loans and leases	438,069	416,316
Commercial
Loans 30-59 Days Past Due		20
Total Past Due Loans		20
Current Loans		26,935
Total loans and leases		26,955
Commercial | Real Estate [Member]
Loans 30-59 Days Past Due	203	1,676
Loans 60-89 Days Past Due	530	307
Loans 90 or More Days Past Due	528	1,083
Total Past Due Loans	1,261	3,066
Current Loans	113,619	100,265
Total loans and leases	114,880	103,331
Construction and Land Development | Real Estate [Member]
Loans 30-59 Days Past Due	19	103
Loans 60-89 Days Past Due		17
Loans 90 or More Days Past Due	43	44
Total Past Due Loans	62	164
Current Loans	30,816	25,591
Total loans and leases	30,878	25,755
Residential 1-4 Family | Real Estate [Member]
Loans 30-59 Days Past Due	3,523	4,237
Loans 60-89 Days Past Due	1,076	1,547
Loans 90 or More Days Past Due	1,121	2,233
Total Past Due Loans	5,720	8,017
Current Loans	248,514	241,683
Total loans and leases	254,234	249,700
Multifamily | Real Estate [Member]
Loans 30-59 Days Past Due		1,367
Loans 60-89 Days Past Due
Loans 90 or More Days Past Due
Total Past Due Loans		1,367
Current Loans	14,790	11,215
Total loans and leases	14,790	12,582
Farmland | Real Estate [Member]
Loans 30-59 Days Past Due	55	2,987
Loans 60-89 Days Past Due
Loans 90 or More Days Past Due	284
Total Past Due Loans	339	2,987
Current Loans	22,948	21,961
Total loans and leases	23,287	24,948
Commercial Real Estate [Member]
Loans 30-59 Days Past Due	127	20
Loans 60-89 Days Past Due
Loans 90 or More Days Past Due
Total Past Due Loans	127	20
Current Loans	36,255	26,935
Total loans and leases	36,382	26,955
Agriculture
Loans 30-59 Days Past Due	1	19
Loans 60-89 Days Past Due
Loans 90 or More Days Past Due	4	78
Total Past Due Loans	5	97
Current Loans	3,728	3,067
Total loans and leases	3,733	3,164
Consumer Installment Loans
Loans 30-59 Days Past Due	66	110
Loans 60-89 Days Past Due	1	15
Loans 90 or More Days Past Due	20	36
Total Past Due Loans	87	161
Current Loans	22,432	22,027
Total loans and leases	22,519	22,188
Other Loans
Loans 30-59 Days Past Due
Loans 60-89 Days Past Due
Loans 90 or More Days Past Due
Total Past Due Loans
Current Loans	687	6
Total loans and leases	$ 687	$ 6