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Note 19 - Stock-based Compensation - Unrecognized Stock-based Compensation Expense (Details) $ in Thousands | Jun. 30, 2024 USD ($)
--- | ---
Remainder of 2024 | $ 1,851
2025 | 2,868
2026 | 2,532
2027 | 1,088
2028 | 565
2029 | 46
Total estimated future expense | 8,950
Stock Appreciation Rights (SARs) [Member] |
Remainder of 2024 | 190
2025 | 336
2026 | 286
2027 | 216
2028 | 126
2029 | 11
Total estimated future expense | 1,165
Restricted Stock [Member] |
Remainder of 2024 | 844
2025 | 1,488
2026 | 1,203
2027 | 872
2028 | 439
2029 | 35
Total estimated future expense | 4,881
Restricted Stock Units (RSUs) [Member] |
Remainder of 2024 | 251
2025 | 1
2026 | 0
2027 | 0
2028 | 0
2029 | 0
Total estimated future expense | 252
Performance Shares [Member] |
Remainder of 2024 | 566
2025 | 1,043
2026 | 1,043
2027 | 0
2028 | 0
2029 | 0
Total estimated future expense | $ 2,652

X
- Definition Unrecognized cost of unvested share-based compensation awards due in fifth fiscal year following latest fiscal year. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Unrecognized cost of unvested share-based compensation awards due in fourth fiscal year following latest fiscal year. + References No definition available. + Details
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Namespace Prefix: | sybt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Unrecognized cost of unvested share-based compensation awards due in third fiscal year following latest fiscal year. + References No definition available. + Details
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Namespace Prefix: | sybt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Unrecognized cost of unvested share-based compensation awards due in second fiscal year following latest fiscal year. + References No definition available. + Details
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Namespace Prefix: | sybt_
Data Type: | xbrli:monetaryItemType
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X
- Definition Unrecognized cost of unvested share-based compensation awards due next twelve months. + References No definition available. + Details
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Namespace Prefix: | sybt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Unrecognized cost of unvested share-based compensation awards due in remainder of fiscal year following latest fiscal year ended. + References No definition available. + Details
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Namespace Prefix: | sybt_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
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