XML 101 R84.htm IDEA: XBRL DOCUMENT
v3.22.4

Note 5 - Loans and ACL for Loans - Allowance for Loan Losses by Portfolio Segment and Based on Impairment Evaluation Method (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jan. 01, 2020 | Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2022 | Mar. 31, 2022 | Dec. 31, 2021 | Sep. 30, 2021 | Jun. 30, 2021 | Mar. 31, 2021 | Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Beginning balance |  |  |  |  | $ 53,898 |  |  |  | $ 51,920 |  |  |  |  | $ 53,898 | $ 51,920 |
Initial Allowance on PCD Loans |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,950 | 6,757 | $ 1,635
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,682 | 1,397 |
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  | (2,307) | (7,681) |
Recoveries |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,308 | 1,505 | 456
Ending balance |  | $ 73,531 |  |  |  | $ 53,898 |  |  |  | $ 51,920 |  |  |  | 73,531 | 53,898 | 51,920
Beginning balance | $ 26,791 |  |  |  |  |  |  |  | 51,920 |  |  |  | $ 26,791 |  | 51,920 | 26,791
Impact of adoption |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 8,221
Provision for credit losses |  | 3,375 | $ 4,803 | $ (200) | 2,279 | (1,900) | $ (1,525) | $ 4,147 | (1,475) | 500 | $ 4,968 | $ 7,025 | 5,925 |  |  | 16,918
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (2,101)
Ending balance | 36,647 |  |  |  |  |  |  |  |  | 51,920 |  |  |  |  |  | 51,920
Loans, individually evaluated for impairment |  | 27,706 |  |  |  | 12,562 |  |  |  |  |  |  |  | 27,706 | 12,562 |
Allowance for loans, individually evaluated for impairment |  | 5,822 |  |  |  | 1,768 |  |  |  |  |  |  |  | 5,822 | 1,768 |
Real Estate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 22,459 |  |  |  | 11,517 |  |  |  |  |  |  |  | 22,459 | 11,517 |
Accounts Receivable and Equipment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 5,028 |  |  |  | 798 |  |  |  |  |  |  |  | 5,028 | 798 |
Other Collateral [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 219 |  |  |  | 247 |  |  |  |  |  |  |  | 219 | 247 |
Home Equity Line of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  | 1,044 |  |  |  | 895 |  |  |  |  | 1,044 | 895 |
Initial Allowance on PCD Loans |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 | 147 | 0
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  | 567 | 1 |
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Recoveries |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 1 | 0
Ending balance |  | 1,613 |  |  |  | 1,044 |  |  |  | 895 |  |  |  | 1,613 | 1,044 | 895
Beginning balance | 728 |  |  |  |  |  |  |  | 895 |  |  |  | 728 |  | 895 | 728
Impact of adoption |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 114
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 53
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0
Ending balance | 842 |  |  |  |  |  |  |  |  | 895 |  |  |  |  |  | 895
Loans, individually evaluated for impairment |  | 205 |  |  |  | 646 |  |  |  |  |  |  |  | 205 | 646 |
Allowance for loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Home Equity Line of Credit [Member] | Real Estate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 205 |  |  |  | 646 |  |  |  |  |  |  |  | 205 | 646 |
Home Equity Line of Credit [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Home Equity Line of Credit [Member] | Other Collateral [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Commercial Real Estate Portfolio Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  | 25,555 |  |  |  | 26,379 |  |  |  |  | 25,555 | 26,379 |
Initial Allowance on PCD Loans |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,629 | 3,603 | 1,502
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,112 | (205) |
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  | (78) | (4,974) |
Recoveries |  |  |  |  |  |  |  |  |  |  |  |  |  | 250 | 752 | 12
Ending balance |  | 33,468 |  |  |  | 25,555 |  |  |  | 26,379 |  |  |  | 33,468 | 25,555 | 26,379
Beginning balance | 8,562 |  |  |  |  |  |  |  | 26,379 |  |  |  | 8,562 |  | 26,379 | 8,562
Impact of adoption |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,488
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 13,309
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1,494)
Ending balance | 14,552 |  |  |  |  |  |  |  |  | 26,379 |  |  |  |  |  | 26,379
Loans, individually evaluated for impairment |  | 19,179 |  |  |  | 8,372 |  |  |  |  |  |  |  | 19,179 | 8,372 |
Allowance for loans, individually evaluated for impairment |  | 3,498 |  |  |  | 1,652 |  |  |  |  |  |  |  | 3,498 | 1,652 |
Commercial Real Estate Portfolio Segment [Member] | Real Estate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 19,179 |  |  |  | 8,372 |  |  |  |  |  |  |  | 19,179 | 8,372 |
Commercial Real Estate Portfolio Segment [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Commercial Real Estate Portfolio Segment [Member] | Other Collateral [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  | 15,960 |  |  |  | 19,396 |  |  |  |  | 15,960 | 19,396 |
Initial Allowance on PCD Loans |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,508 | 1,491 | 152
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,173 | (2,031) |
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  | (37) | (3,065) |
Recoveries |  |  |  |  |  |  |  |  |  |  |  |  |  | 37 | 169 | 12
Ending balance |  | 22,641 |  |  |  | 15,960 |  |  |  | 19,396 |  |  |  | 22,641 | 15,960 | 19,396
Beginning balance | 5,235 |  |  |  |  |  |  |  | 19,396 |  |  |  | 5,235 |  | 19,396 | 5,235
Impact of adoption |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,946
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11,194
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (143)
Ending balance | 8,333 |  |  |  |  |  |  |  |  | 19,396 |  |  |  |  |  | 19,396
Loans, individually evaluated for impairment |  | 14,764 |  |  |  | 720 |  |  |  |  |  |  |  | 14,764 | 720 |
Allowance for loans, individually evaluated for impairment |  | 2,652 |  |  |  | 0 |  |  |  |  |  |  |  | 2,652 | 0 |
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Real Estate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 14,764 |  |  |  | 720 |  |  |  |  |  |  |  | 14,764 | 720 |
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Commercial Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Other Collateral [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  | 9,595 |  |  |  | 6,983 |  |  |  |  | 9,595 | 6,983 |
Initial Allowance on PCD Loans |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,121 | 2,112 | 1,350
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  | (1,061) | 1,826 |
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  | (41) | (1,909) |
Recoveries |  |  |  |  |  |  |  |  |  |  |  |  |  | 213 | 583 | 0
Ending balance |  | 10,827 |  |  |  | 9,595 |  |  |  | 6,983 |  |  |  | 10,827 | 9,595 | 6,983
Beginning balance | 3,327 |  |  |  |  |  |  |  | 6,983 |  |  |  | 3,327 |  | 6,983 | 3,327
Impact of adoption |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,542
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,115
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1,351)
Ending balance | 6,219 |  |  |  |  |  |  |  |  | 6,983 |  |  |  |  |  | 6,983
Loans, individually evaluated for impairment |  | 4,415 |  |  |  | 7,652 |  |  |  |  |  |  |  | 4,415 | 7,652 |
Allowance for loans, individually evaluated for impairment |  | 846 |  |  |  | 1,652 |  |  |  |  |  |  |  | 846 | 1,652 |
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Real Estate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 4,415 |  |  |  | 7,652 |  |  |  |  |  |  |  | 4,415 | 7,652 |
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Commercial Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Other Collateral [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Commercial and Industrial Portfolio Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 5,489 |  |  |  | 798 |  |  |  |  |  |  |  | 5,489 | 798 |
Allowance for loans, individually evaluated for impairment |  | 1,966 |  |  |  | 0 |  |  |  |  |  |  |  | 1,966 | 0 |
Commercial and Industrial Portfolio Segment [Member] | Real Estate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 461 |  |  |  | 0 |  |  |  |  |  |  |  | 461 | 0 |
Commercial and Industrial Portfolio Segment [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 5,028 |  |  |  | 798 |  |  |  |  |  |  |  | 5,028 | 798 |
Commercial and Industrial Portfolio Segment [Member] | Other Collateral [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Commercial and Industrial Portfolio Segment [Member] | Term [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  | 8,577 |  |  |  | 8,970 |  |  |  |  | 8,577 | 8,970 |
Initial Allowance on PCD Loans |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,358 | 1,022 | 0
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,497 | (112) |
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  | (724) | (1,337) |
Recoveries |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,283 | 34 | 9
Ending balance |  | 12,991 |  |  |  | 8,577 |  |  |  | 8,970 |  |  |  | 12,991 | 8,577 | 8,970
Beginning balance | 6,782 |  |  |  |  |  |  |  | 8,970 |  |  |  | 6,782 |  | 8,970 | 6,782
Impact of adoption |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 365
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,832
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (18)
Ending balance |  |  |  |  |  |  |  |  |  | 8,970 |  |  |  |  |  | 8,970
Loans, individually evaluated for impairment |  | 2,246 |  |  |  | 598 |  |  |  |  |  |  |  | 2,246 | 598 |
Allowance for loans, individually evaluated for impairment |  | 1,205 |  |  |  | 0 |  |  |  |  |  |  |  | 1,205 | 0 |
Commercial and Industrial Portfolio Segment [Member] | Term [Member] | Real Estate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 39 |  |  |  | 0 |  |  |  |  |  |  |  | 39 | 0 |
Commercial and Industrial Portfolio Segment [Member] | Term [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 2,207 |  |  |  | 598 |  |  |  |  |  |  |  | 2,207 | 598 |
Commercial and Industrial Portfolio Segment [Member] | Term [Member] | Other Collateral [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Commercial and Industrial Portfolio Segment [Member] | Lines of Credit [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  | 4,802 |  |  |  | 3,614 |  |  |  |  | 4,802 | 3,614 |
Initial Allowance on PCD Loans |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,874 | 1,755 | 0
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  | (87) | (567) |
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  | (200) | 0 |
Recoveries |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Ending balance |  | 6,389 |  |  |  | 4,802 |  |  |  | 3,614 |  |  |  | 6,389 | 4,802 | 3,614
Beginning balance | 5,657 |  |  |  |  |  |  |  | 3,614 |  |  |  | 5,657 |  | 3,614 | 5,657
Impact of adoption |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1,528)
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (515)
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0
Ending balance | 4,129 |  |  |  |  |  |  |  |  | 3,614 |  |  |  |  |  | 3,614
Loans, individually evaluated for impairment |  | 3,243 |  |  |  | 200 |  |  |  |  |  |  |  | 3,243 | 200 |
Allowance for loans, individually evaluated for impairment |  | 761 |  |  |  | 0 |  |  |  |  |  |  |  | 761 | 0 |
Commercial and Industrial Portfolio Segment [Member] | Lines of Credit [Member] | Real Estate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 422 |  |  |  | 0 |  |  |  |  |  |  |  | 422 | 0 |
Commercial and Industrial Portfolio Segment [Member] | Lines of Credit [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 2,821 |  |  |  | 200 |  |  |  |  |  |  |  | 2,821 | 200 |
Commercial and Industrial Portfolio Segment [Member] | Lines of Credit [Member] | Other Collateral [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Total Commercial and Industrial Portfolio Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  | 13,379 |  |  |  | 12,584 |  |  |  |  | 13,379 | 12,584 |
Initial Allowance on PCD Loans |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,232 | 2,777 | 0
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,410 | (679) |
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  | (924) | (1,337) |
Recoveries |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,283 | 34 | 9
Ending balance |  | 19,380 |  |  |  | 13,379 |  |  |  | 12,584 |  |  |  | 19,380 | 13,379 | 12,584
Beginning balance | 12,439 |  |  |  |  |  |  |  | 12,584 |  |  |  | 12,439 |  | 12,584 | 12,439
Impact of adoption |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (1,163)
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,317
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (18)
Ending balance | 11,276 |  |  |  |  |  |  |  |  | 12,584 |  |  |  |  |  | 12,584
Residential Real Estate Portfolio Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  | 7,993 |  |  |  | 5,207 |  |  |  |  | 7,993 | 5,207 |
Initial Allowance on PCD Loans |  |  |  |  |  |  |  |  |  |  |  |  |  | 590 | 230 | 99
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,702 | 2,900 |
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  | (57) | (383) |
Recoveries |  |  |  |  |  |  |  |  |  |  |  |  |  | 86 | 39 | 20
Ending balance |  | 10,314 |  |  |  | 7,993 |  |  |  | 5,207 |  |  |  | 10,314 | 7,993 | 5,207
Beginning balance | 2,474 |  |  |  |  |  |  |  | 5,207 |  |  |  | 2,474 |  | 5,207 | 2,474
Impact of adoption |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,516
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,179
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (81)
Ending balance | 4,089 |  |  |  |  |  |  |  |  | 5,207 |  |  |  |  |  | 5,207
Loans, individually evaluated for impairment |  | 2,614 |  |  |  | 2,499 |  |  |  |  |  |  |  | 2,614 | 2,499 |
Allowance for loans, individually evaluated for impairment |  | 338 |  |  |  | 116 |  |  |  |  |  |  |  | 338 | 116 |
Residential Real Estate Portfolio Segment [Member] | Real Estate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 2,614 |  |  |  | 2,499 |  |  |  |  |  |  |  | 2,614 | 2,499 |
Residential Real Estate Portfolio Segment [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Residential Real Estate Portfolio Segment [Member] | Other Collateral [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Residential Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  | 3,677 |  |  |  | 1,818 |  |  |  |  | 3,677 | 1,818 |
Initial Allowance on PCD Loans |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 88 | 0
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  | (75) | 1,766 |
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  | (27) | 0 |
Recoveries |  |  |  |  |  |  |  |  |  |  |  |  |  | 22 | 5 | 2
Ending balance |  | 3,597 |  |  |  | 3,677 |  |  |  | 1,818 |  |  |  | 3,597 | 3,677 | 1,818
Beginning balance | 947 |  |  |  |  |  |  |  | 1,818 |  |  |  | 947 |  | 1,818 | 947
Impact of adoption |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 429
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 442
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (2)
Ending balance | 1,376 |  |  |  |  |  |  |  |  | 1,818 |  |  |  |  |  | 1,818
Loans, individually evaluated for impairment |  | 415 |  |  |  | 502 |  |  |  |  |  |  |  | 415 | 502 |
Allowance for loans, individually evaluated for impairment |  | 116 |  |  |  | 116 |  |  |  |  |  |  |  | 116 | 116 |
Residential Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Real Estate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 415 |  |  |  | 502 |  |  |  |  |  |  |  | 415 | 502 |
Residential Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Residential Real Estate Portfolio Segment [Member] | Non-owner Occupied [Member] | Other Collateral [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Residential Real Estate Portfolio Segment [Member] | Owner Occupied [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  | 4,316 |  |  |  | 3,389 |  |  |  |  | 4,316 | 3,389 |
Initial Allowance on PCD Loans |  |  |  |  |  |  |  |  |  |  |  |  |  | 590 | 142 | 99
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,777 | 1,134 |
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  | (30) | (383) |
Recoveries |  |  |  |  |  |  |  |  |  |  |  |  |  | 64 | 34 | 18
Ending balance |  | 6,717 |  |  |  | 4,316 |  |  |  | 3,389 |  |  |  | 6,717 | 4,316 | 3,389
Beginning balance | 1,527 |  |  |  |  |  |  |  | 3,389 |  |  |  | 1,527 |  | 3,389 | 1,527
Impact of adoption |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,087
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 737
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (79)
Ending balance | 2,713 |  |  |  |  |  |  |  |  | 3,389 |  |  |  |  |  | 3,389
Loans, individually evaluated for impairment |  | 2,199 |  |  |  | 1,997 |  |  |  |  |  |  |  | 2,199 | 1,997 |
Allowance for loans, individually evaluated for impairment |  | 222 |  |  |  | 0 |  |  |  |  |  |  |  | 222 | 0 |
Residential Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Real Estate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 2,199 |  |  |  | 1,997 |  |  |  |  |  |  |  | 2,199 | 1,997 |
Residential Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Residential Real Estate Portfolio Segment [Member] | Owner Occupied [Member] | Other Collateral [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Construction and Development [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  | 4,789 |  |  |  | 6,119 |  |  |  |  | 4,789 | 6,119 |
Initial Allowance on PCD Loans |  |  |  |  |  |  |  |  |  |  |  |  |  | 419 | 0 | 0
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,050 | (1,333) |
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  | (72) | 0 |
Recoveries |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 3 | 56
Ending balance |  | 7,186 |  |  |  | 4,789 |  |  |  | 6,119 |  |  |  | 7,186 | 4,789 | 6,119
Beginning balance | 2,105 |  |  |  |  |  |  |  | 6,119 |  |  |  | 2,105 |  | 6,119 | 2,105
Impact of adoption |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,056
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 902
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0
Ending balance | 5,161 |  |  |  |  |  |  |  |  | 6,119 |  |  |  |  |  | 6,119
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Allowance for loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Construction and Development [Member] | Real Estate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Construction and Development [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Construction and Development [Member] | Other Collateral [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Consumer Portfolio Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  | 772 |  |  |  | 340 |  |  |  |  | 772 | 340 |
Initial Allowance on PCD Loans |  |  |  |  |  |  |  |  |  |  |  |  |  | 78 | 0 | 34
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  | 750 | 743 |
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  | (1,080) | (987) |
Recoveries |  |  |  |  |  |  |  |  |  |  |  |  |  | 638 | 676 | 359
Ending balance |  | 1,158 |  |  |  | 772 |  |  |  | 340 |  |  |  | 1,158 | 772 | 340
Beginning balance | 100 |  |  |  |  |  |  |  | 340 |  |  |  | 100 |  | 340 | 100
Impact of adoption |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 264
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 91
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (508)
Ending balance | 398 |  |  |  |  |  |  |  |  | 340 |  |  |  |  |  | 340
Loans, individually evaluated for impairment |  | 219 |  |  |  | 247 |  |  |  |  |  |  |  | 219 | 247 |
Allowance for loans, individually evaluated for impairment |  | 20 |  |  |  | 0 |  |  |  |  |  |  |  | 20 | 0 |
Consumer Portfolio Segment [Member] | Real Estate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Consumer Portfolio Segment [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Consumer Portfolio Segment [Member] | Other Collateral [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 219 |  |  |  | 247 |  |  |  |  |  |  |  | 219 | 247 |
Finance Leases Portfolio Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  | 204 |  |  |  | 261 |  |  |  |  | 204 | 261 |
Initial Allowance on PCD Loans |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  | (3) | (57) |
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 |
Recoveries |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Ending balance |  | 201 |  |  |  | 204 |  |  |  | 261 |  |  |  | 201 | 204 | 261
Beginning balance | 237 |  |  |  |  |  |  |  | 261 |  |  |  | 237 |  | 261 | 237
Impact of adoption |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (4)
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 28
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0
Ending balance | 233 |  |  |  |  |  |  |  |  | 261 |  |  |  |  |  | 261
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Allowance for loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Finance Leases Portfolio Segment [Member] | Real Estate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Finance Leases Portfolio Segment [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Finance Leases Portfolio Segment [Member] | Other Collateral [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Commercial Portfolio Segment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance | 146 |  |  |  |  |  |  |  |  |  |  |  | 146 |  |  | 146
Ending balance | 96 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial Portfolio Segment [Member] | Credit Card Receivable [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Beginning balance |  |  |  |  | $ 162 |  |  |  | 135 |  |  |  |  | 162 | 135 |
Initial Allowance on PCD Loans |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 | 0 | 0
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  | 94 | 27 |
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  | (96) | 0 |
Recoveries |  |  |  |  |  |  |  |  |  |  |  |  |  | 51 | 0 | 0
Ending balance |  | 211 |  |  |  | 162 |  |  |  | 135 |  |  |  | 211 | 162 | 135
Beginning balance | $ 146 |  |  |  |  |  |  |  | $ 135 |  |  |  | $ 146 |  | 135 | 146
Impact of adoption |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | (50)
Provision for credit losses |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 39
Charge-offs |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0
Ending balance |  |  |  |  |  |  |  |  |  | $ 135 |  |  |  |  |  | $ 135
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Allowance for loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Commercial Portfolio Segment [Member] | Credit Card Receivable [Member] | Real Estate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Commercial Portfolio Segment [Member] | Credit Card Receivable [Member] | Accounts Receivable and Equipment [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | 0 |  |  |  | 0 |  |  |  |  |  |  |  | 0 | 0 |
Commercial Portfolio Segment [Member] | Credit Card Receivable [Member] | Other Collateral [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Loans, individually evaluated for impairment |  | $ 0 |  |  |  | $ 0 |  |  |  |  |  |  |  | $ 0 | $ 0 |

X
- Definition Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment. + References No definition available. + Details
Name: | sybt_FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment
Namespace Prefix: | sybt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The balance of financing receivables that were individually evaluated for impairment. + References No definition available. + Details
Name: | sybt_FinancingReceivablesIndividuallyEvaluatedForImpairment
Namespace Prefix: | sybt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of impact of accounting policy adoption on the allowance for loans and leases receivable. + References No definition available. + Details
Name: | sybt_LoansAndLeasesReceivableAllowanceImpactOfAccountingPolicyAdoption
Namespace Prefix: | sybt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss. + 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 (c)(3) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
Name: | us-gaap_AllowanceForLoanAndLeaseLossesWriteOffs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of increase in allowance for credit loss on financing receivable from purchase of loan. Excludes financing receivable purchased with credit deterioration, loan acquired through business combination or acquisition, and net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossLoanPurchased
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement. + 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 (c)(1) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)(2)) -URI https://asc.fasb.org/extlink&oid=126897435&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 45 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (3) Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (c) Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (1) + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- 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 https://asc.fasb.org/extlink&oid=124267575&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 https://asc.fasb.org/extlink&oid=124255953&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 https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesRecovery
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of writeoff of financing receivable, charged against allowance for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(3) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI https://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 + Details
Name: | us-gaap_FinancingReceivableAllowanceForCreditLossesWriteOffs
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 4 -Subparagraph (SAB Topic 6.L.1) -URI https://asc.fasb.org/extlink&oid=122038336&loc=d3e74567-122707 Reference 2: 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 https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b)(1)(ii) -URI https://asc.fasb.org/extlink&oid=121614798&loc=d3e15032-111544 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11B -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
Name: | us-gaap_LoansAndLeasesReceivableAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of expense related to estimated loss from loan and lease transactions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.11) -URI https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 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)(2) -URI https://asc.fasb.org/extlink&oid=123577603&loc=SL6953423-111524 + Details
Name: | us-gaap_ProvisionForLoanAndLeaseLosses
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of credit loss expense (reversal of expense) for financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(11)) -URI https://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260 + Details
Name: | us-gaap_ProvisionForLoanLossesExpensed
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_CollateralAxis=us-gaap_RealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CollateralAxis=sybt_AccountsReceivableAndEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CollateralAxis=sybt_OtherCollateralMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_HomeEquityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=sybt_NonownerOccupiedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=sybt_OwnerOccupiedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=sybt_CommercialAndIndustrialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=sybt_TermMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=sybt_LinesOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=sybt_TotalCommercialAndIndustrialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=sybt_ResidentialRealEstatePortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=sybt_ConstructionAndDevelopmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_FinanceLeasesPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_CreditCardReceivablesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |