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Loans, Allowance for Loan Losses by Portfolio Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Balance at beginning of period | $ 14,247 | $ 13,084 | $ 13,845 | $ 12,884
Charge-offs | (10) | (139) | (19) | (353)
Recoveries | 40 | 9 | 51 | 23
Provision (Credit) | 550 | 350 | 950 | 750
Balance at end of period | 14,827 | 13,304 | 14,827 | 13,304
Real Estate Loans [Member] | Residential [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 1,154 | 1,089 | 1,114 | 1,105
Charge-offs |  | 0 |  | 0
Recoveries |  | 0 |  | 0
Provision (Credit) | 52 | (23) | 92 | (39)
Balance at end of period | 1,206 | 1,066 | 1,206 | 1,066
Real Estate Loans [Member] | Commercial [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 4,729 | 4,130 | 4,549 | 4,115
Charge-offs | 0 | (93) | (1) | (293)
Recoveries | 33 | 0 | 34 | 0
Provision (Credit) | 182 | 363 | 362 | 578
Balance at end of period | 4,944 | 4,400 | 4,944 | 4,400
Real Estate Loans [Member] | Agricultural [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 4,878 | 4,392 | 5,022 | 4,264
Charge-offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Provision (Credit) | 183 | 140 | 39 | 268
Balance at end of period | 5,061 | 4,532 | 5,061 | 4,532
Real Estate Loans [Member] | Construction [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 56 | 32 | 43 | 58
Charge-offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Provision (Credit) | 25 | 4 | 38 | (22)
Balance at end of period | 81 | 36 | 81 | 36
Consumer [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 117 | 124 | 112 | 120
Charge-offs | (10) | (8) | (18) | (22)
Recoveries | 4 | 7 | 12 | 18
Provision (Credit) | 251 | (5) | 256 | 2
Balance at end of period | 362 | 118 | 362 | 118
Other Commercial Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 1,297 | 1,283 | 1,255 | 1,354
Charge-offs | 0 | (38) | 0 | (38)
Recoveries | 3 | 2 | 5 | 5
Provision (Credit) | (99) | 81 | (59) | 7
Balance at end of period | 1,201 | 1,328 | 1,201 | 1,328
Other Agricultural Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 835 | 756 | 961 | 752
Charge-offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Provision (Credit) | (14) | (15) | (140) | (11)
Balance at end of period | 821 | 741 | 821 | 741
State and Political Subdivision Loans [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 558 | 565 | 536 | 762
Charge-offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Provision (Credit) | (11) | (26) | 11 | (223)
Balance at end of period | 547 | 539 | 547 | 539
Unallocated [Member] |  |  |  |
Financing Receivable, Allowance for Credit Losses [Roll Forward] |  |  |  |
Balance at beginning of period | 623 | 713 | 253 | 354
Charge-offs | 0 | 0 | 0 | 0
Recoveries | 0 | 0 | 0 | 0
Provision (Credit) | (19) | (169) | 351 | 190
Balance at end of period | $ 604 | $ 544 | $ 604 | $ 544

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- Definition Amount of increase in allowance for credit loss on financing receivable from recovery. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI http://asc.fasb.org/extlink&oid=121647567&loc=SL82922352-210448 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(4) -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953423-111524 + Details
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