| Comprehensive Income (Loss) Note [Text Block] |
| 10. OTHER COMPREHENSIVE LOSS |
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| The changes in the accumulated balances for each component of other comprehensive loss, net of tax for the six months ended June 30, 2024 and June 30, 2025 were as follows: |
| | | Unrealized | | | Accumulated | |
| | | Losses | | | Comprehensive | |
| | | on AFS Securities | | | Loss, net of tax | |
| Beginning Balance, January 1, 2024 | | $ | (46,088 | ) | | $ | (32,464 | ) |
| Current year-to-date other comprehensive income | | | 10,443 | | | | 7,355 | |
| Ending balance, June 30, 2024 | | $ | (35,645 | ) | | $ | (25,109 | ) |
| | | | | | | | | |
| Beginning Balance, January 1, 2025 | | $ | (35,698 | ) | | $ | (25,145 | ) |
| Current year-to-date other comprehensive income | | | 6,343 | | | | 4,467 | |
| Ending balance, June 30, 2025 | | $ | (29,355 | ) | | $ | (20,678 | ) |
| Reclassifications out of accumulated other comprehensive loss for the three months ended June 30, 2025 and June 30, 2024, were as follows: |
| Amounts Reclassified from Accumulated Other Comprehensive Loss |
| Details about Accumulated Other Comprehensive (Loss) Components | | Six Months Ended June 30, 2025 | | | Six Months Ended June 30, 2024 | | Affected Line Item on the Statement of Income |
| Investment securities: | | | | | | | | | |
| (Gain)/ loss on sale of investment securities | | $ | (3 | ) | | $ | 19,826 | | Non-Interest Income |
| Tax effect | | | 1 | | | | (5,861 | ) | Provision for income taxes |
| Total reclassifications for the period | | $ | (2 | ) | | $ | 13,965 | | Net income |
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