LOANS, Financing Receivables by Credit Quality Indicator (Details) - USD ($) $ in Thousands	Sep. 30, 2021	Dec. 31, 2020	Sep. 30, 2020
Risk Rating by Loan Class [Abstract]
Loans	$ 839,488	$ 893,214	$ 983,973
Pass [Member]
Risk Rating by Loan Class [Abstract]
Loans	809,042	846,139
Special Mention [Member]
Risk Rating by Loan Class [Abstract]
Loans	7,728	19,986
Substandard [Member]
Risk Rating by Loan Class [Abstract]
Loans	17,753	27,089
Doubtful [Member]
Risk Rating by Loan Class [Abstract]
Loans	4,965	0
Loss [Member]
Risk Rating by Loan Class [Abstract]
Loans	0	0
Commercial [Member]
Risk Rating by Loan Class [Abstract]
Loans	165,661	255,926	331,445
Commercial [Member] | Pass [Member]
Risk Rating by Loan Class [Abstract]
Loans	154,312	244,327
Commercial [Member] | Special Mention [Member]
Risk Rating by Loan Class [Abstract]
Loans	3,170	10,731
Commercial [Member] | Substandard [Member]
Risk Rating by Loan Class [Abstract]
Loans	8,179	868
Commercial [Member] | Doubtful [Member]
Risk Rating by Loan Class [Abstract]
Loans	0	0
Commercial [Member] | Loss [Member]
Risk Rating by Loan Class [Abstract]
Loans	0	0
Commercial Real Estate [Member]
Risk Rating by Loan Class [Abstract]
Loans	484,840	454,053	456,237
Commercial Real Estate [Member] | Pass [Member]
Risk Rating by Loan Class [Abstract]
Loans	475,871	431,381
Commercial Real Estate [Member] | Special Mention [Member]
Risk Rating by Loan Class [Abstract]
Loans	4,558	9,255
Commercial Real Estate [Member] | Substandard [Member]
Risk Rating by Loan Class [Abstract]
Loans	4,411	13,417
Commercial Real Estate [Member] | Doubtful [Member]
Risk Rating by Loan Class [Abstract]
Loans	0	0
Commercial Real Estate [Member] | Loss [Member]
Risk Rating by Loan Class [Abstract]
Loans	0	0
Agriculture [Member]
Risk Rating by Loan Class [Abstract]
Loans	90,821	95,048	102,045
Agriculture [Member] | Pass [Member]
Risk Rating by Loan Class [Abstract]
Loans	81,691	83,493
Agriculture [Member] | Special Mention [Member]
Risk Rating by Loan Class [Abstract]
Loans	0	0
Agriculture [Member] | Substandard [Member]
Risk Rating by Loan Class [Abstract]
Loans	4,165	11,555
Agriculture [Member] | Doubtful [Member]
Risk Rating by Loan Class [Abstract]
Loans	4,965	0
Agriculture [Member] | Loss [Member]
Risk Rating by Loan Class [Abstract]
Loans	0	0
Residential Mortgage [Member]
Risk Rating by Loan Class [Abstract]
Loans	75,200	64,497	67,240
Residential Mortgage [Member] | Pass [Member]
Risk Rating by Loan Class [Abstract]
Loans	74,883	64,018
Residential Mortgage [Member] | Special Mention [Member]
Risk Rating by Loan Class [Abstract]
Loans	0	0
Residential Mortgage [Member] | Substandard [Member]
Risk Rating by Loan Class [Abstract]
Loans	317	479
Residential Mortgage [Member] | Doubtful [Member]
Risk Rating by Loan Class [Abstract]
Loans	0	0
Residential Mortgage [Member] | Loss [Member]
Risk Rating by Loan Class [Abstract]
Loans	0	0
Residential Construction [Member]
Risk Rating by Loan Class [Abstract]
Loans	5,174	4,223	6,610
Residential Construction [Member] | Pass [Member]
Risk Rating by Loan Class [Abstract]
Loans	5,174	4,223
Residential Construction [Member] | Special Mention [Member]
Risk Rating by Loan Class [Abstract]
Loans	0	0
Residential Construction [Member] | Substandard [Member]
Risk Rating by Loan Class [Abstract]
Loans	0	0
Residential Construction [Member] | Doubtful [Member]
Risk Rating by Loan Class [Abstract]
Loans	0	0
Residential Construction [Member] | Loss [Member]
Risk Rating by Loan Class [Abstract]
Loans	0	0
Consumer [Member]
Risk Rating by Loan Class [Abstract]
Loans	17,792	19,467	$ 20,396
Consumer [Member] | Pass [Member]
Risk Rating by Loan Class [Abstract]
Loans	17,111	18,697
Consumer [Member] | Special Mention [Member]
Risk Rating by Loan Class [Abstract]
Loans	0	0
Consumer [Member] | Substandard [Member]
Risk Rating by Loan Class [Abstract]
Loans	681	770
Consumer [Member] | Doubtful [Member]
Risk Rating by Loan Class [Abstract]
Loans	0	0
Consumer [Member] | Loss [Member]
Risk Rating by Loan Class [Abstract]
Loans	$ 0	$ 0