Note 3 - Investment Securities (Details Textual) - USD ($) |
3 Months Ended | ||
---|---|---|---|
Mar. 31, 2021 |
Mar. 31, 2020 |
Dec. 31, 2020 |
|
Security Owned and Pledged as Collateral, Fair Value, Total | $ 20,890,319 | $ 34,958,212 | |
Proceeds from Sale of Debt Securities, Available-for-sale | 513,845 | ||
Debt Securities, Available-for-sale, Realized Gain (Loss), Total | $ 8,569 | $ 0 |
X | ||||||||||
- Definition Amount of realized gain (loss) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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X | ||||||||||
- Definition Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
X | ||||||||||
- Definition Fair value of financial instrument held by the entity for its own account (proprietary securities) for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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