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Note 3 - Available-for-sale Securities (Tables) | 3 Months Ended
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Mar. 31, 2021
Notes Tables |
Debt Securities, Available-for-sale [Table Text Block] |
(In thousands) |  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized (Losses) |  |  | Fair Value |
March 31, 2021: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U. S. Government agency mortgage-backed securities |  | $ | 22,867 |  |  | $ | 109 |  |  | $ | (289 | ) |  | $ | 22,687 |
Corporate bonds |  |  | 18,013 |  |  |  | 272 |  |  |  | (952 | ) |  |  | 17,333 |
Subordinated notes |  |  | 9,040 |  |  |  | 115 |  |  |  | (6 | ) |  |  | 9,149 |
SBA loan pools |  |  | 8,336 |  |  |  | - |  |  |  | (171 | ) |  |  | 8,165 |
Municipal bonds |  |  | 564 |  |  |  | - |  |  |  | (5 | ) |  |  | 559 |
|  | $ | 58,820 |  |  | $ | 496 |  |  | $ | (1,423 | ) |  | $ | 57,893 |
December 31, 2020: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U. S. Government agency mortgage-backed securities |  | $ | 16,719 |  |  | $ | 131 |  |  | $ | (17 | ) |  | $ | 16,833 |
Corporate bonds |  |  | 18,014 |  |  |  | 260 |  |  |  | (984 | ) |  |  | 17,290 |
Subordinated notes |  |  | 9,036 |  |  |  | 97 |  |  |  | (128 | ) |  |  | 9,005 |
SBA loan pools |  |  | 5,627 |  |  |  | - |  |  |  | (60 | ) |  |  | 5,567 |
Municipal bonds |  |  | 564 |  |  |  | 3 |  |  |  | - |  |  |  | 567 |
|  | $ | 49,960 |  |  | $ | 491 |  |  | $ | (1,189 | ) |  | $ | 49,262 |
Schedule of Unrealized Loss on Investments [Table Text Block] |
(In thousands) |  | Less than 12 Months |  |  | 12 Months or More |  |  | Total |
|  | Fair Value |  |  | Unrealized (Loss) |  |  | Fair Value |  |  | Unrealized (Loss) |  |  | Fair Value |  |  | Unrealized (Loss) |
March 31, 2021: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U. S. Government agency mortgage-backed securities |  | $ | 14,055 |  |  | $ | (288 | ) |  | $ | 77 |  |  | $ | (1 | ) |  | $ | 14,132 |  |  | $ | (289 | )
Corporate bonds |  |  | - |  |  |  | - |  |  |  | 13,047 |  |  |  | (952 | ) |  |  | 13,047 |  |  |  | (952 | )
Subordinated notes |  |  | 999 |  |  |  | (1 | ) |  |  | 1,104 |  |  |  | (5 | ) |  |  | 2,103 |  |  |  | (6 | )
SBA loan pools |  |  | 4,458 |  |  |  | (127 | ) |  |  | 3,707 |  |  |  | (44 | ) |  |  | 8,165 |  |  |  | (171 | )
Municipal bonds |  |  | 403 |  |  |  | (5 | ) |  |  | - |  |  |  | - |  |  |  | 403 |  |  |  | (5 | )
|  | $ | 19,915 |  |  | $ | (421 | ) |  | $ | 17,935 |  |  | $ | (1,002 | ) |  | $ | 37,850 |  |  | $ | (1,423 | )
December 31, 2020: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U. S. Government agency mortgage-backed securities |  | $ | 5,797 |  |  | $ | (14 | ) |  | $ | 1,476 |  |  | $ | (3 | ) |  | $ | 7,273 |  |  | $ | (17 | )
Corporate bonds |  |  | - |  |  |  | - |  |  |  | 13,015 |  |  |  | (984 | ) |  |  | 13,015 |  |  |  | (984 | )
Subordinated notes |  |  | 1,878 |  |  |  | (122 | ) |  |  | 1,103 |  |  |  | (6 | ) |  |  | 2,981 |  |  |  | (128 | )
SBA loan pools |  |  | 1,533 |  |  |  | (12 | ) |  |  | 4,034 |  |  |  | (48 | ) |  |  | 5,567 |  |  |  | (60 | )
|  | $ | 9,208 |  |  | $ | (148 | ) |  | $ | 19,628 |  |  | $ | (1,041 | ) |  | $ | 28,836 |  |  | $ | (1,189 | )
Investments Classified by Contractual Maturity Date [Table Text Block] |
(In thousands) |  | Amortized Cost |  |  | Fair Value |
|  | Due Within 5 years |  |  | Due After 5 years through 10 years |  |  | Due After 10 years |  |  | Total |  |  | Due Within 5 years |  |  | Due After 5 years through 10 years |  |  | Due After 10 years |  |  | Total |
March 31, 2021: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds |  | $ | 4,013 |  |  | $ | 14,000 |  |  | $ | - |  |  | $ | 18,013 |  |  | $ | 4,285 |  |  | $ | 13,048 |  |  | $ | - |  |  | $ | 17,333 |
Subordinated notes |  |  | 2,000 |  |  |  | 7,040 |  |  |  | - |  |  |  | 9,040 |  |  |  | 2,003 |  |  |  | 7,146 |  |  |  | - |  |  |  | 9,149 |
SBA loan pools |  |  | 1,735 |  |  |  | 3,468 |  |  |  | 3,133 |  |  |  | 8,336 |  |  |  | 1,715 |  |  |  | 3,427 |  |  |  | 3,023 |  |  |  | 8,165 |
Municipal bonds |  |  | - |  |  |  | 564 |  |  |  | - |  |  |  | 564 |  |  |  | - |  |  |  | 559 |  |  |  | - |  |  |  | 559 |
Available-for-sale securities with stated maturity dates |  |  | 7,748 |  |  |  | 25,072 |  |  |  | 3,133 |  |  |  | 35,953 |  |  |  | 8,003 |  |  |  | 24,180 |  |  |  | 3,023 |  |  |  | 35,206 |
U. S. Government agency mortgage-backed securities |  |  | 1,035 |  |  |  | 1,343 |  |  |  | 20,489 |  |  |  | 22,867 |  |  |  | 1,036 |  |  |  | 1,367 |  |  |  | 20,284 |  |  |  | 22,687 |
|  | $ | 8,783 |  |  | $ | 26,415 |  |  | $ | 23,622 |  |  | $ | 58,820 |  |  | $ | 9,039 |  |  | $ | 25,547 |  |  | $ | 23,307 |  |  | $ | 57,893 |
December 31, 2020: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Corporate bonds |  | $ | 4,014 |  |  | $ | 14,000 |  |  | $ | - |  |  | $ | 18,014 |  |  | $ | 4,274 |  |  | $ | 13,016 |  |  | $ | - |  |  | $ | 17,290 |
Subordinated notes |  |  | 2,000 |  |  |  | 7,036 |  |  |  | - |  |  |  | 9,036 |  |  |  | 2,003 |  |  |  | 7,002 |  |  |  | - |  |  |  | 9,005 |
SBA loan pools |  |  | 1,921 |  |  |  | 3,706 |  |  |  | - |  |  |  | 5,627 |  |  |  | 1,899 |  |  |  | 3,668 |  |  |  | - |  |  |  | 5,567 |
Municipal bonds |  |  | - |  |  |  | 564 |  |  |  | - |  |  |  | 564 |  |  |  | - |  |  |  | 567 |  |  |  | - |  |  |  | 567 |
Available-for-sale securities with stated maturity dates |  |  | 7,935 |  |  |  | 25,306 |  |  |  | - |  |  |  | 33,241 |  |  |  | 8,176 |  |  |  | 24,253 |  |  |  | - |  |  |  | 32,429 |
U. S. Government agency mortgage-backed securities |  |  | 3,364 |  |  |  | 1,466 |  |  |  | 11,889 |  |  |  | 16,719 |  |  |  | 3,363 |  |  |  | 1,491 |  |  |  | 11,979 |  |  |  | 16,833 |
|  | $ | 11,299 |  |  | $ | 26,772 |  |  | $ | 11,889 |  |  | $ | 49,960 |  |  | $ | 11,539 |  |  | $ | 25,744 |  |  | $ | 11,979 |  |  | $ | 49,262 |

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- Definition Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 + Details
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