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Note 10 - Fair Values of Financial Instruments (Tables) | 3 Months Ended
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Mar. 31, 2021
Notes Tables |
Fair Value, by Balance Sheet Grouping [Table Text Block] |
| Level in |  | March 31, 2021 |  |  | December 31, 2020 |
| Fair Value |  | Carrying |  |  | Fair |  |  | Carrying |  |  | Fair |
| Hierarchy |  | Values |  |  | Values |  |  | Values |  |  | Values |
Financial assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash | Level 1 |  | $ | 16,853 |  |  | $ | 16,853 |  |  | $ | 16,953 |  |  | $ | 16,953 |
Cash equivalents | Level 2 |  |  | 635,491 |  |  |  | 635,491 |  |  |  | 609,053 |  |  |  | 609,053 |
Securities available for sale | (1) |  |  | 434,257 |  |  |  | 434,257 |  |  |  | 387,347 |  |  |  | 387,347 |
FHLBI stock | (2) |  |  | 18,002 |  |  |  | 18,002 |  |  |  | 18,002 |  |  |  | 18,002 |
Loans, net | Level 3 |  |  | 3,325,675 |  |  |  | 3,463,032 |  |  |  | 3,155,503 |  |  |  | 3,294,522 |
Mortgage loans held for sale | Level 2 |  |  | 40,297 |  |  |  | 41,318 |  |  |  | 22,888 |  |  |  | 24,029 |
Mortgage servicing rights | Level 2 |  |  | 9,029 |  |  |  | 11,036 |  |  |  | 8,189 |  |  |  | 10,006 |
Accrued interest receivable | Level 2 |  |  | 11,832 |  |  |  | 11,832 |  |  |  | 10,861 |  |  |  | 10,861 |
Financial liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deposits | Level 2 |  |  | 3,644,962 |  |  |  | 3,648,390 |  |  |  | 3,411,553 |  |  |  | 3,397,768 |
Repurchase agreements | Level 2 |  |  | 141,310 |  |  |  | 141,310 |  |  |  | 118,365 |  |  |  | 118,365 |
FHLBI advances | Level 2 |  |  | 394,000 |  |  |  | 409,589 |  |  |  | 394,000 |  |  |  | 410,881 |
Subordinated debentures | Level 2 |  |  | 47,733 |  |  |  | 47,733 |  |  |  | 47,563 |  |  |  | 47,574 |
Liabilities held for sale | Level 2 |  |  | 17,280 |  |  |  | 18,144 |  |  |  | 0 |  |  |  | 0 |
Accrued interest payable | Level 2 |  |  | 2,056 |  |  |  | 2,056 |  |  |  | 2,313 |  |  |  | 2,313 |

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- Definition Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13467-108611 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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