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Note 10 - Fair Values of Financial Instruments (Tables) | 3 Months Ended
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Mar. 31, 2019
Notes Tables |
Fair Value, by Balance Sheet Grouping [Table Text Block] |
| Level in |  | March 31, 2019 |  |  | December 31, 2018 |
| Fair Value |  | Carrying |  |  | Fair |  |  | Carrying |  |  | Fair |
| Hierarchy |  | Values |  |  | Values |  |  | Values |  |  | Values |
Financial assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Cash | Level 1 |  | $ | 14,918 |  |  | $ | 14,918 |  |  | $ | 15,656 |  |  | $ | 15,656 |
Cash equivalents | Level 2 |  |  | 199,976 |  |  |  | 199,976 |  |  |  | 59,698 |  |  |  | 59,698 |
Securities available for sale | (1) |  |  | 337,876 |  |  |  | 337,876 |  |  |  | 337,366 |  |  |  | 337,366 |
FHLBI stock | (2) |  |  | 18,002 |  |  |  | 18,002 |  |  |  | 16,022 |  |  |  | 16,022 |
Loans, net | Level 3 |  |  | 2,774,694 |  |  |  | 2,818,384 |  |  |  | 2,729,583 |  |  |  | 2,711,687 |
Loans held for sale | Level 2 |  |  | 1,810 |  |  |  | 1,810 |  |  |  | 1,122 |  |  |  | 1,122 |
Mortgage servicing rights | Level 2 |  |  | 4,415 |  |  |  | 8,230 |  |  |  | 4,436 |  |  |  | 8,444 |
Accrued interest receivable | Level 2 |  |  | 11,360 |  |  |  | 11,360 |  |  |  | 9,896 |  |  |  | 9,896 |
Financial liabilities: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deposits | Level 2 |  |  | 2,610,974 |  |  |  | 2,490,572 |  |  |  | 2,463,708 |  |  |  | 2,471,617 |
Repurchase agreements | Level 2 |  |  | 111,235 |  |  |  | 111,235 |  |  |  | 103,519 |  |  |  | 103,519 |
FHLBI advances | Level 2 |  |  | 384,000 |  |  |  | 387,530 |  |  |  | 350,000 |  |  |  | 348,428 |
Subordinated debentures | Level 2 |  |  | 46,369 |  |  |  | 46,380 |  |  |  | 46,199 |  |  |  | 46,543 |
Accrued interest payable | Level 2 |  |  | 3,723 |  |  |  | 3,723 |  |  |  | 2,249 |  |  |  | 2,249 |

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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=118260190&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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