LOANS, Non-accrual and Past Due Loans (Details)	Mar. 31, 2016 USD ($) Loan	Dec. 31, 2015 USD ($) Loan	Mar. 31, 2015 USD ($)
Non-accrual and Past Due Loans [Abstract]
Non-accrual loans	$ 2,028,000	$ 2,728,000
Total past due	6,379,000	1,090,000
Current	619,728,000	613,005,000
Total	626,107,000	614,095,000	$ 544,499,000
Loans 90 days past due and still accruing	0	2,000
30-59 Days Past Due [Member]
Non-accrual and Past Due Loans [Abstract]
Total past due	718,000	367,000
60-89 Days Past Due [Member]
Non-accrual and Past Due Loans [Abstract]
Total past due	5,592,000	5,000
90 Days or More Past Due [Member]
Non-accrual and Past Due Loans [Abstract]
Total past due	69,000	718,000
Commercial [Member]
Non-accrual and Past Due Loans [Abstract]
Non-accrual loans	$ 275,000	$ 112,000
Number of nonaccrual loans | Loan	5	4
Total past due	$ 331,000	$ 275,000
Current	130,083,000	135,820,000
Total	130,414,000	136,095,000	115,933,000
Commercial [Member] | 30-59 Days Past Due [Member]
Non-accrual and Past Due Loans [Abstract]
Total past due	108,000	218,000
Commercial [Member] | 60-89 Days Past Due [Member]
Non-accrual and Past Due Loans [Abstract]
Total past due	166,000	0
Commercial [Member] | 90 Days or More Past Due [Member]
Non-accrual and Past Due Loans [Abstract]
Total past due	57,000	57,000
Commercial Real Estate [Member]
Non-accrual and Past Due Loans [Abstract]
Non-accrual loans	$ 600,000	$ 964,000
Number of nonaccrual loans | Loan	2	4
Total past due	$ 5,919,000	$ 362,000
Current	311,031,000	291,954,000
Total	316,950,000	292,316,000	264,880,000
Commercial Real Estate [Member] | 30-59 Days Past Due [Member]
Non-accrual and Past Due Loans [Abstract]
Total past due	493,000	130,000
Commercial Real Estate [Member] | 60-89 Days Past Due [Member]
Non-accrual and Past Due Loans [Abstract]
Total past due	5,426,000	0
Commercial Real Estate [Member] | 90 Days or More Past Due [Member]
Non-accrual and Past Due Loans [Abstract]
Total past due	0	232,000
Agriculture [Member]
Non-accrual and Past Due Loans [Abstract]
Non-accrual loans	0	0
Total past due	0	0
Current	77,185,000	84,813,000
Total	77,185,000	84,813,000	54,719,000
Agriculture [Member] | 30-59 Days Past Due [Member]
Non-accrual and Past Due Loans [Abstract]
Total past due	0	0
Agriculture [Member] | 60-89 Days Past Due [Member]
Non-accrual and Past Due Loans [Abstract]
Total past due	0	0
Agriculture [Member] | 90 Days or More Past Due [Member]
Non-accrual and Past Due Loans [Abstract]
Total past due	0	0
Residential Mortgage [Member]
Non-accrual and Past Due Loans [Abstract]
Non-accrual loans	$ 1,083,000	$ 1,092,000
Number of nonaccrual loans | Loan	4	4
Total past due	$ 117,000	$ 0
Current	41,295,000	43,375,000
Total	41,412,000	43,375,000	49,696,000
Residential Mortgage [Member] | 30-59 Days Past Due [Member]
Non-accrual and Past Due Loans [Abstract]
Total past due	117,000	0
Residential Mortgage [Member] | 60-89 Days Past Due [Member]
Non-accrual and Past Due Loans [Abstract]
Total past due	0	0
Residential Mortgage [Member] | 90 Days or More Past Due [Member]
Non-accrual and Past Due Loans [Abstract]
Total past due	0	0
Residential Construction [Member]
Non-accrual and Past Due Loans [Abstract]
Non-accrual loans	0	0
Total past due	0	0
Current	16,760,000	12,110,000
Total	16,760,000	12,110,000	10,096,000
Residential Construction [Member] | 30-59 Days Past Due [Member]
Non-accrual and Past Due Loans [Abstract]
Total past due	0	0
Residential Construction [Member] | 60-89 Days Past Due [Member]
Non-accrual and Past Due Loans [Abstract]
Total past due	0	0
Residential Construction [Member] | 90 Days or More Past Due [Member]
Non-accrual and Past Due Loans [Abstract]
Total past due	0	0
Consumer [Member]
Non-accrual and Past Due Loans [Abstract]
Non-accrual loans	$ 70,000	$ 560,000
Number of nonaccrual loans | Loan	2	4
Total past due	$ 12,000	$ 453,000
Current	43,374,000	44,933,000
Total	43,386,000	45,386,000	$ 49,175,000
Consumer [Member] | 30-59 Days Past Due [Member]
Non-accrual and Past Due Loans [Abstract]
Total past due	0	19,000
Consumer [Member] | 60-89 Days Past Due [Member]
Non-accrual and Past Due Loans [Abstract]
Total past due	0	5,000
Consumer [Member] | 90 Days or More Past Due [Member]
Non-accrual and Past Due Loans [Abstract]
Total past due	$ 12,000	$ 429,000