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v3.23.1

Note 3 - Securities (Tables) | 3 Months Ended
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Mar. 31, 2023
Notes Tables |
Schedule of Available-for-Sale Securities Reconciliation [Table Text Block] |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
Available-for-Sale Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
March 31, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Certificates of deposit |  | $ | 2,977 |  |  | $ | — |  |  | $ | — |  |  | $ | 2,977 |
Municipal securities |  |  | 240 |  |  |  | — |  |  |  | (13 | ) |  |  | 227 |
U.S. Treasury Notes |  |  | 128,137 |  |  |  | — |  |  |  | (5,772 | ) |  |  | 122,365 |
U.S. government-sponsored agencies |  |  | 40,000 |  |  |  | — |  |  |  | (261 | ) |  |  | 39,739 |
Mortgage-backed securities - residential |  |  | 3,880 |  |  |  | 25 |  |  |  | (124 | ) |  |  | 3,781 |
Collateralized mortgage obligations - residential |  |  | 1,171 |  |  |  | — |  |  |  | (21 | ) |  |  | 1,150 |
|  | $ | 176,405 |  |  | $ | 25 |  |  | $ | (6,191 | ) |  | $ | 170,239 |
December 31, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Certificates of deposit |  | $ | 2,233 |  |  | $ | — |  |  | $ | — |  |  | $ | 2,233 |
Municipal securities |  |  | 240 |  |  |  | — |  |  |  | (15 | ) |  |  | 225 |
U.S. Treasury Notes |  |  | 170,906 |  |  |  | — |  |  |  | (7,803 | ) |  |  | 163,103 |
U.S. government-sponsored agencies |  |  | 40,000 |  |  |  | — |  |  |  | (301 | ) |  |  | 39,699 |
Mortgage-backed securities - residential |  |  | 3,997 |  |  |  | 27 |  |  |  | (143 | ) |  |  | 3,881 |
Collateralized mortgage obligations - residential |  |  | 1,223 |  |  |  | — |  |  |  | (26 | ) |  |  | 1,197 |
|  | $ | 218,599 |  |  | $ | 27 |  |  | $ | (8,288 | ) |  | $ | 210,338 |
Investments Classified by Contractual Maturity Date [Table Text Block] |
|  | March 31, 2023 |
|  | Amortized Cost |  |  | Fair Value |
Due in one year or less |  | $ | 63,028 |  |  | $ | 61,858 |
Due after one year through five years |  |  | 108,326 |  |  |  | 103,450 |
|  |  | 171,354 |  |  |  | 165,308 |
Mortgage-backed securities - residential |  |  | 3,880 |  |  |  | 3,781 |
Collateralized mortgage obligations - residential |  |  | 1,171 |  |  |  | 1,150 |
|  | $ | 176,405 |  |  | $ | 170,239 |
Schedule of Unrealized Loss on Investments [Table Text Block] |
|  | Less than 12 Months |  |  | 12 Months or More |  |  | Total |
|  | Count |  |  | Fair Value |  |  | Unrealized Loss |  |  | Count |  |  | Fair Value |  |  | Unrealized Loss |  |  | Count |  |  | Fair Value |  |  | Unrealized Loss |
March 31, 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Municipal securities |  |  | — |  |  | $ | — |  |  | $ | — |  |  |  | 1 |  |  | $ | 227 |  |  | $ | (13 | ) |  |  | 1 |  |  | $ | 227 |  |  | $ | (13 | )
U.S. Treasury Notes |  |  | 2 |  |  |  | 4,170 |  |  |  | (53 | ) |  |  | 179 |  |  |  | 118,195 |  |  |  | (5,719 | ) |  |  | 181 |  |  |  | 122,365 |  |  |  | (5,772 | )
U.S. government-sponsored agencies |  |  | 9 |  |  |  | 39,739 |  |  |  | (261 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 9 |  |  |  | 39,739 |  |  |  | (261 | )
Mortgage-backed securities - residential |  |  | 14 |  |  |  | 2,414 |  |  |  | (78 | ) |  |  | 2 |  |  |  | 539 |  |  |  | (46 | ) |  |  | 16 |  |  |  | 2,953 |  |  |  | (124 | )
Collateralized mortgage obligations - residential |  |  | 4 |  |  |  | 256 |  |  |  | (4 | ) |  |  | 4 |  |  |  | 894 |  |  |  | (17 | ) |  |  | 8 |  |  |  | 1,150 |  |  |  | (21 | )
|  |  | 29 |  |  | $ | 46,579 |  |  | $ | (396 | ) |  |  | 186 |  |  | $ | 119,855 |  |  | $ | (5,795 | ) |  |  | 215 |  |  | $ | 166,434 |  |  | $ | (6,191 | )
December 31, 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Municipal securities |  |  | 1 |  |  | $ | 225 |  |  | $ | (15 | ) |  |  | — |  |  | $ | — |  |  | $ | — |  |  |  | 1 |  |  | $ | 225 |  |  | $ | (15 | )
U.S. Treasury Notes |  |  | 147 |  |  |  | 104,439 |  |  |  | (4,104 | ) |  |  | 53 |  |  |  | 58,664 |  |  |  | (3,699 | ) |  |  | 200 |  |  |  | 163,103 |  |  |  | (7,803 | )
U.S. government-sponsored agencies |  |  | 9 |  |  |  | 39,699 |  |  |  | (301 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 9 |  |  |  | 39,699 |  |  |  | (301 | )
Mortgage-backed securities - residential |  |  | 18 |  |  |  | 3,016 |  |  |  | (143 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 18 |  |  |  | 3,016 |  |  |  | (143 | )
Collateralized mortgage obligations - residential |  |  | 5 |  |  |  | 1,009 |  |  |  | (18 | ) |  |  | 1 |  |  |  | 171 |  |  |  | (8 | ) |  |  | 6 |  |  |  | 1,180 |  |  |  | (26 | )
|  |  | 180 |  |  | $ | 148,388 |  |  | $ | (4,581 | ) |  |  | 54 |  |  | $ | 58,835 |  |  | $ | (3,707 | ) |  |  | 234 |  |  | $ | 207,223 |  |  | $ | (8,288 | )
Gain (Loss) on Securities [Table Text Block] |
|  | Three Months Ended |
|  | March 31, |
|  | 2023 |  |  | 2022 |
Proceeds |  | $ | 42,631 |  |  | $ | — |
Gross gains |  |  | — |  |  |  | — |
Gross losses |  |  | (454 | ) |  |  | — |

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