LOANS, Impaired Loans (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Impaired loans [Abstract]
Unpaid contractual principal balance	$ 9,099		$ 9,693
Recorded investment with no allowance	3,575		3,767
Recorded investment with allowance	4,921		5,234
Total recorded investment	8,496		9,001
Related allowance	467		470
Interest income on impaired loans recognized using an accrual method of accounting [Abstract]
Average recorded investment	8,747	$ 10,863
Interest income recognized	77	73
Commercial [Member]
Impaired loans [Abstract]
Unpaid contractual principal balance	3,420		3,882
Recorded investment with no allowance	879		1,057
Recorded investment with allowance	2,312		2,603
Total recorded investment	3,191		3,660
Related allowance	47		53
Interest income on impaired loans recognized using an accrual method of accounting [Abstract]
Average recorded investment	3,425	5,561
Interest income recognized	46	9
Commercial Real Estate [Member]
Impaired loans [Abstract]
Unpaid contractual principal balance	2,088		2,114
Recorded investment with no allowance	1,676		1,724
Recorded investment with allowance	270		272
Total recorded investment	1,946		1,996
Related allowance	36		36
Interest income on impaired loans recognized using an accrual method of accounting [Abstract]
Average recorded investment	1,971	809
Interest income recognized	4	15
Agriculture [Member]
Impaired loans [Abstract]
Unpaid contractual principal balance	0		0
Recorded investment with no allowance	0		0
Recorded investment with allowance	0		0
Total recorded investment	0		0
Related allowance	0		0
Interest income on impaired loans recognized using an accrual method of accounting [Abstract]
Average recorded investment	0	0
Interest income recognized	0	0
Residential Mortgage [Member]
Impaired loans [Abstract]
Unpaid contractual principal balance	2,424		2,628
Recorded investment with no allowance	708		781
Recorded investment with allowance	1,484		1,496
Total recorded investment	2,192		2,277
Related allowance	309		302
Interest income on impaired loans recognized using an accrual method of accounting [Abstract]
Average recorded investment	2,234	3,028
Interest income recognized	15	31
Residential Construction [Member]
Impaired loans [Abstract]
Unpaid contractual principal balance	644		651
Recorded investment with no allowance	0		0
Recorded investment with allowance	644		650
Total recorded investment	644		650
Related allowance	71		76
Interest income on impaired loans recognized using an accrual method of accounting [Abstract]
Average recorded investment	647	816
Interest income recognized	9	9
Consumer [Member]
Impaired loans [Abstract]
Unpaid contractual principal balance	523		418
Recorded investment with no allowance	312		205
Recorded investment with allowance	211		213
Total recorded investment	523		418
Related allowance	4		$ 3
Interest income on impaired loans recognized using an accrual method of accounting [Abstract]
Average recorded investment	470	649
Interest income recognized	$ 3	$ 9