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Note 3 - Debt Securities | 12 Months Ended
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Dec. 31, 2021
Notes to Financial Statements |
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] | Note 3. Debt Securities The following tables present the amortized cost and fair value of available-for-sale debt securities, including gross unrealized gains and losses, as of the dates indicated:
|  | December 31, 2021 |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
|  | Cost |  |  | Gains |  |  | Losses |  |  | Value |
(Amounts in thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Agency securities |  | $ | 469 |  |  | $ | — |  |  | $ | (3 | ) |  | $ | 466 |
Municipal securities |  |  | 28,596 |  |  |  | 198 |  |  |  | — |  |  |  | 28,794 |
Corporate Notes |  |  | 9,935 |  |  |  | — |  |  |  | (16 | ) |  |  | 9,919 |
Mortgage-backed Agency securities |  |  | 37,273 |  |  |  | 513 |  |  |  | (673 | ) |  |  | 37,113 |
Total |  | $ | 76,273 |  |  | $ | 711 |  |  | $ | (692 | ) |  | $ | 76,292 |
|  | December 31, 2020 |
|  | Amortized |  |  | Unrealized |  |  | Unrealized |  |  | Fair |
|  | Cost |  |  | Gains |  |  | Losses |  |  | Value |
(Amounts in thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Agency securities |  | $ | 555 |  |  | $ | — |  |  | $ | (4 | ) |  | $ | 551 |
Municipal securities |  |  | 43,950 |  |  |  | 509 |  |  |  | — |  |  |  | 44,459 |
Mortgage-backed Agency securities |  |  | 37,453 |  |  |  | 992 |  |  |  | (97 | ) |  |  | 38,348 |
Total |  | $ | 81,958 |  |  | $ | 1,501 |  |  | $ | (101 | ) |  | $ | 83,358 |
The following table presents the amortized cost and fair value of available-for-sale debt securities, by contractual maturity, as of December 31, 2021. Actual maturities could differ from contractual maturities because issuers may have the right to call or prepay obligations with or without penalties.
(Amounts in thousands) |  | U.S. Agency Securities |  |  | Municipal Securities |  |  | Corporate Notes |  |  | Total |
Amortized cost maturity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
One year or less |  | $ | — |  |  | $ | 735 |  |  | $ | 7,382 |  |  | $ | 8,117 |
After one year through five years |  |  | — |  |  |  | 19,425 |  |  |  | 2,553 |  |  |  | 21,978 |
After five years through ten years |  |  | 469 |  |  |  | 8,436 |  |  |  | — |  |  |  | 8,905 |
After ten years |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Amortized cost |  | $ | 469 |  |  | $ | 28,596 |  |  | $ | 9,935 |  |  |  | 39,000 |
Mortgage-backed securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 37,273 |
Total amortized cost |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 76,273 |
Fair value maturity: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
One year or less |  | $ | — |  |  | $ | 736 |  |  | $ | 7,372 |  |  | $ | 8,108 |
After one year through five years |  |  | — |  |  |  | 19,537 |  |  |  | 2,547 |  |  |  | 22,084 |
After five years through ten years |  |  | 466 |  |  |  | 8,521 |  |  |  | — |  |  |  | 8,987 |
After ten years |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Fair value |  | $ | 466 |  |  | $ | 28,794 |  |  | $ | 9,919 |  |  |  | 39,179 |
Mortgage-backed securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 37,113 |
Total fair value |  |  |  |  |  |  |  |  |  |  |  |  |  | $ | 76,292 |
The following tables present the fair values and unrealized losses for available-for-sale debt securities in a continuous unrealized loss position for less than 12 months and for 12 months or longer as of the dates indicated:
|  | December 31, 2021 |
|  | Less than 12 Months |  |  | 12 Months or Longer |  |  | Total |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
|  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
(Amounts in thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Agency securities |  | $ | — |  |  | $ | — |  |  | $ | 459 |  |  | $ | (3 | ) |  | $ | 459 |  |  | $ | (3 | )
Municipal securities |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Corporate Notes |  |  | 9,919 |  |  |  | (16 | ) |  |  | — |  |  |  | — |  |  |  | 9,919 |  |  |  | (16 | )
Mortgage-backed Agency securities |  |  | 14,092 |  |  |  | (253 | ) |  |  | 8,384 |  |  |  | (420 | ) |  |  | 22,476 |  |  |  | (673 | )
Total |  | $ | 24,011 |  |  | $ | (269 | ) |  | $ | 8,843 |  |  | $ | (423 | ) |  | $ | 32,854 |  |  | $ | (692 | )
|  | December 31, 2020 |
|  | Less than 12 Months |  |  | 12 Months or Longer |  |  | Total |
|  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |  |  | Fair |  |  | Unrealized |
|  | Value |  |  | Losses |  |  | Value |  |  | Losses |  |  | Value |  |  | Losses |
(Amounts in thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
U.S. Agency securities |  | $ | — |  |  | $ | — |  |  | $ | 544 |  |  | $ | (4 | ) |  | $ | 544 |  |  | $ | (4 | )
Municipal securities |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Mortgage-backed Agency securities |  |  | 11,018 |  |  |  | (97 | ) |  |  | — |  |  |  | — |  |  |  | 11,018 |  |  |  | (97 | )
Total |  | $ | 11,018 |  |  | $ | (97 | ) |  | $ | 544 |  |  | $ | (4 | ) |  | $ | 11,562 |  |  | $ | (101 | )
There were 23 individual debt securities in an unrealized loss position as of December 31, 2021, and their combined depreciation in value represented 0.91% of the debt securities portfolio. There were 6 individual debt securities in an unrealized loss position as of December 31, 2020, and their combined depreciation in value represented 0.12% of the debt securities portfolio. The following table presents gross realized gains and losses from the sale of available-for-sale debt securities for the periods indicated:
|  | Year Ended December 31, |
|  | 2021 |  |  | 2020 |  |  | 2019 |
(Amounts in thousands) |  |  |  |  |  |  |  |  |  |  |  |
Gross realized gains |  | $ | — |  |  | $ | 419 |  |  | $ | 67 |
Gross realized losses |  |  | — |  |  |  | (34 | ) |  |  | (110 | )
Net gain (loss) on sale of securities |  | $ | — |  |  | $ | 385 |  |  | $ | (43 | )
The carrying amount of securities pledged for various purposes totaled $22.15 million as of December 31, 2021, and $36.56 million as of December 31, 2020.

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- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2209399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2324412 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2176304 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1403 -Paragraph (b) + Details
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