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Note 2 - Securities - Amortized Cost and Estimated Fair Value of Debt Securities (Details) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
--- | --- | ---
1 year or less | $ 6,284 | $ 3,051
1 to 5 years | 68,067 | 31,103
5 to 10 years | 32,159 | 55,000
After 10 years | 14,737 | 11,796
Fair value | 121,247 | 100,950
Gross unrealized gains | 19 | 1,034
Gross unrealized losses | (11,006) | (1,147)
Amortized cost | 132,234 | 101,063
U.S. Treasury Notes [Member] |  |
1 year or less | 4,990 |
1 to 5 years | 2,440 |
5 to 10 years | 0 |
After 10 years | 0 |
Fair value | 7,430 |
Gross unrealized gains | 0 |
Gross unrealized losses | (48) |
Amortized cost | 7,478 |
US Government Agencies Debt Securities [Member] |  |
1 year or less | 0 | 0
1 to 5 years | 8,771 | 4,466
5 to 10 years | 9,290 | 5,587
After 10 years | 0 | 0
Fair value | 18,061 | 10,053
Gross unrealized gains | 0 | 73
Gross unrealized losses | (1,098) | (78)
Amortized cost | 19,159 | 10,058
Municipal Bonds [Member] |  |
1 year or less | 871 | 1,631
1 to 5 years | 4,955 | 2,244
5 to 10 years | 3,022 | 3,941
After 10 years | 11,382 | 10,184
Fair value | 20,230 | 18,000
Gross unrealized gains | 19 | 423
Gross unrealized losses | (2,646) | (14)
Amortized cost | 22,857 | 17,591
Residential Mortgage-Backed Securities [Member] |  |
1 year or less | 0 | 356
1 to 5 years | 29,242 | 12,417
5 to 10 years | 11,174 | 29,375
After 10 years | 0 | 0
Fair value | 40,416 | 42,148
Gross unrealized gains | 0 | 259
Gross unrealized losses | (3,993) | (612)
Amortized cost | 44,409 | 42,501
Commercial Mortgage-Backed Securities [Member] |  |
1 year or less | 423 | 1,064
1 to 5 years | 22,659 | 11,976
5 to 10 years | 8,673 | 16,097
After 10 years | 3,355 | 1,612
Fair value | 35,110 | 30,749
Gross unrealized gains | 0 | 279
Gross unrealized losses | (3,221) | (443)
Amortized cost | $ 38,331 | $ 30,913

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- Definition Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
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- Definition Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
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- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in sixth through tenth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27198-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3A -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126980459&loc=SL120269850-112803 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 + Details
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- Definition Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27161-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27198-111563 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3A -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126980459&loc=SL120269850-112803 + Details
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