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LOANS AND RELATED ALLOWANCE FOR LOAN LOSSES, Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | $ 11,190 |  |  |  | $ 8,886 | $ 11,190 | $ 8,886 | $ 7,106
Charge-offs |  |  |  |  |  |  |  |  | (365) | (313) | (340)
Recoveries |  |  |  |  |  |  |  |  | 134 | 77 | 600
Provision | $ 625 | $ 475 | $ 325 | 500 | $ 800 | $ 500 | $ 625 | 615 | 1,925 | 2,540 | 1,520
Balance at end of period | 12,884 |  |  |  | 11,190 |  |  |  | 12,884 | 11,190 | 8,886
Individually evaluated for impairment | 676 |  |  |  | 410 |  |  |  | 676 | 410 | 487
Collectively evaluated for impairment | 12,208 |  |  |  | 10,780 |  |  |  | 12,208 | 10,780 | 8,399
Real Estate Loans [Member] | Residential [Member] |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | 1,049 |  |  |  | 1,064 | 1,049 | 1,064 | 905
Charge-offs |  |  |  |  |  |  |  |  | (118) | (107) | (85)
Recoveries |  |  |  |  |  |  |  |  | 69 | 0 | 0
Provision |  |  |  |  |  |  |  |  | 105 | 92 | 244
Balance at end of period | 1,105 |  |  |  | 1,049 |  |  |  | 1,105 | 1,049 | 1,064
Individually evaluated for impairment | 24 |  |  |  | 56 |  |  |  | 24 | 56 | 32
Collectively evaluated for impairment | 1,081 |  |  |  | 993 |  |  |  | 1,081 | 993 | 1,032
Real Estate Loans [Member] | Commercial [Member] |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | 3,867 |  |  |  | 3,589 | 3,867 | 3,589 | 3,376
Charge-offs |  |  |  |  |  |  |  |  | (66) | (41) | (100)
Recoveries |  |  |  |  |  |  |  |  | 3 | 11 | 479
Provision |  |  |  |  |  |  |  |  | 311 | 308 | (166)
Balance at end of period | 4,115 |  |  |  | 3,867 |  |  |  | 4,115 | 3,867 | 3,589
Individually evaluated for impairment | 216 |  |  |  | 94 |  |  |  | 216 | 94 | 45
Collectively evaluated for impairment | 3,899 |  |  |  | 3,773 |  |  |  | 3,899 | 3,773 | 3,544
Real Estate Loans [Member] | Agricultural [Member] |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | 3,143 |  |  |  | 1,494 | 3,143 | 1,494 | 409
Charge-offs |  |  |  |  |  |  |  |  | 0 | (30) | 0
Recoveries |  |  |  |  |  |  |  |  | 0 | 0 | 0
Provision |  |  |  |  |  |  |  |  | 1,121 | 1,679 | 1,085
Balance at end of period | 4,264 |  |  |  | 3,143 |  |  |  | 4,264 | 3,143 | 1,494
Individually evaluated for impairment | 84 |  |  |  | 3 |  |  |  | 84 | 3 | 54
Collectively evaluated for impairment | 4,180 |  |  |  | 3,140 |  |  |  | 4,180 | 3,140 | 1,440
Real Estate Loans [Member] | Construction [Member] |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | 23 |  |  |  | 47 | 23 | 47 | 24
Charge-offs |  |  |  |  |  |  |  |  | 0 | 0 | 0
Recoveries |  |  |  |  |  |  |  |  | 0 | 0 | 0
Provision |  |  |  |  |  |  |  |  | 35 | (24) | 23
Balance at end of period | 58 |  |  |  | 23 |  |  |  | 58 | 23 | 47
Individually evaluated for impairment | 0 |  |  |  | 0 |  |  |  | 0 | 0 | 0
Collectively evaluated for impairment | 58 |  |  |  | 23 |  |  |  | 58 | 23 | 47
Consumer [Member] |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | 124 |  |  |  | 122 | 124 | 122 | 102
Charge-offs |  |  |  |  |  |  |  |  | (40) | (130) | (100)
Recoveries |  |  |  |  |  |  |  |  | 31 | 49 | 88
Provision |  |  |  |  |  |  |  |  | 5 | 83 | 32
Balance at end of period | 120 |  |  |  | 124 |  |  |  | 120 | 124 | 122
Individually evaluated for impairment | 0 |  |  |  | 0 |  |  |  | 0 | 0 | 0
Collectively evaluated for impairment | 120 |  |  |  | 124 |  |  |  | 120 | 124 | 122
Other Commercial Loans [Member] |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | 1,272 |  |  |  | 1,327 | 1,272 | 1,327 | 1,183
Charge-offs |  |  |  |  |  |  |  |  | (91) | 0 | (55)
Recoveries |  |  |  |  |  |  |  |  | 30 | 16 | 33
Provision |  |  |  |  |  |  |  |  | 143 | (71) | 166
Balance at end of period | 1,354 |  |  |  | 1,272 |  |  |  | 1,354 | 1,272 | 1,327
Individually evaluated for impairment | 193 |  |  |  | 231 |  |  |  | 193 | 231 | 326
Collectively evaluated for impairment | 1,161 |  |  |  | 1,041 |  |  |  | 1,161 | 1,041 | 1,001
Other Agricultural Loans [Member] |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | 492 |  |  |  | 312 | 492 | 312 | 122
Charge-offs |  |  |  |  |  |  |  |  | (50) | (5) | 0
Recoveries |  |  |  |  |  |  |  |  | 1 | 1 | 0
Provision |  |  |  |  |  |  |  |  | 309 | 184 | 190
Balance at end of period | 752 |  |  |  | 492 |  |  |  | 752 | 492 | 312
Individually evaluated for impairment | 159 |  |  |  | 26 |  |  |  | 159 | 26 | 30
Collectively evaluated for impairment | 593 |  |  |  | 466 |  |  |  | 593 | 466 | 282
State and Political Subdivision Loans [Member] |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | 816 |  |  |  | 833 | 816 | 833 | 593
Charge-offs |  |  |  |  |  |  |  |  | 0 | 0 | 0
Recoveries |  |  |  |  |  |  |  |  | 0 | 0 | 0
Provision |  |  |  |  |  |  |  |  | (54) | (17) | 240
Balance at end of period | 762 |  |  |  | 816 |  |  |  | 762 | 816 | 833
Individually evaluated for impairment | 0 |  |  |  | 0 |  |  |  | 0 | 0 | 0
Collectively evaluated for impairment | 762 |  |  |  | 816 |  |  |  | 762 | 816 | 833
Unallocated [Member] |  |  |  |  |  |  |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |  |  |  |  |  |  |  |
Balance at beginning of period |  |  |  | $ 404 |  |  |  | $ 98 | 404 | 98 | 392
Charge-offs |  |  |  |  |  |  |  |  | 0 | 0 | 0
Recoveries |  |  |  |  |  |  |  |  | 0 | 0 | 0
Provision |  |  |  |  |  |  |  |  | (50) | 306 | (294)
Balance at end of period | 354 |  |  |  | 404 |  |  |  | 354 | 404 | 98
Individually evaluated for impairment | 0 |  |  |  | 0 |  |  |  | 0 | 0 | 0
Collectively evaluated for impairment | $ 354 |  |  |  | $ 404 |  |  |  | $ 354 | $ 404 | $ 98

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- Definition The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953423-111524 + Details
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