Note 4 - Securities (Details Textual) $ in Millions |
Sep. 30, 2020
USD ($)
|
Dec. 31, 2019
USD ($)
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|---|---|---|
| Pledged Financial Instruments, Not Separately Reported, Securities, Total | $ 431.0 | $ 389.9 |
| Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, 12 Months or Longer, Number of Positions | 0 | |
| Available for Sale Securities Debt Securities, Number of Positions | 641 |
| X | ||||||||||
- Definition The number of positions in available for sale debt securities held by the company. No definition available.
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| X | ||||||||||
- Definition Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without an allowance for credit loss. Includes beneficial interest in securitized financial asset. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Sum of the carrying amounts as of the date of the latest financial statement presented of securities which are owned but transferred to another party to serve as collateral to partially or fully secure a debt obligation, repurchase agreement or other current or potential obligation, and for which the transferee is not permitted to sell or re-pledge them to an unrelated party. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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