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Note 3 - Available-for-sale Securities - Investment Debt Securities by Contractual Maturity (Details) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Amortized cost, due within 5 years | $ 8,783 | $ 11,299
Amortized cost, due after 5 years through 10 years | 26,415 | 26,772
Amortized cost, due after 10 years | 23,622 | 11,889
Available-for-sale securities, amortized cost | 58,820 | 49,960
Fair value, due within 5 years | 9,039 | 11,539
Fair value, due after 5 years through 10 years | 25,547 | 25,744
Fair value, due after 10 years | 23,307 | 11,979
Fair value, total | 57,893 | 49,262
Corporate Debt Securities [Member] |  |
Amortized cost, due within 5 years | 4,013 | 4,014
Amortized cost, due after 5 years through 10 years | 14,000 | 14,000
Amortized cost, due after 10 years |  |
Available-for-sale securities, amortized cost | 18,013 | 18,014
Fair value, due within 5 years | 4,285 | 4,274
Fair value, due after 5 years through 10 years | 13,048 | 13,016
Fair value, due after 10 years |  |
Fair value, total | 17,333 | 17,290
Subordinated Notes [Member] |  |
Amortized cost, due within 5 years | 2,000 | 2,000
Amortized cost, due after 5 years through 10 years | 7,040 | 7,036
Amortized cost, due after 10 years |  |
Available-for-sale securities, amortized cost | 9,040 | 9,036
Fair value, due within 5 years | 2,003 | 2,003
Fair value, due after 5 years through 10 years | 7,146 | 7,002
Fair value, due after 10 years |  |
Fair value, total | 9,149 | 9,005
SBA Loan Pools [Member] |  |
Amortized cost, due within 5 years | 1,735 | 1,921
Amortized cost, due after 5 years through 10 years | 3,468 | 3,706
Amortized cost, due after 10 years | 3,133 |
Available-for-sale securities, amortized cost | 8,336 | 5,627
Fair value, due within 5 years | 1,715 | 1,899
Fair value, due after 5 years through 10 years | 3,427 | 3,668
Fair value, due after 10 years | 3,023 |
Fair value, total | 8,165 | 5,567
US States and Political Subdivisions Debt Securities [Member] |  |
Amortized cost, due within 5 years |  |
Amortized cost, due after 5 years through 10 years | 564 | 564
Amortized cost, due after 10 years |  |
Available-for-sale securities, amortized cost | 564 | 564
Fair value, due within 5 years |  |
Fair value, due after 5 years through 10 years | 559 | 567
Fair value, due after 10 years |  |
Fair value, total | 559 | 567
Available-for-sale Securities with Single Maturity Dates [Member] |  |
Amortized cost, due within 5 years | 7,748 | 7,935
Amortized cost, due after 5 years through 10 years | 25,072 | 25,306
Amortized cost, due after 10 years | 3,133 |
Available-for-sale securities, amortized cost | 35,953 | 33,241
Fair value, due within 5 years | 8,003 | 8,176
Fair value, due after 5 years through 10 years | 24,180 | 24,253
Fair value, due after 10 years | 3,023 |
Fair value, total | 35,206 | 32,429
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] |  |
Amortized cost, due within 5 years | 1,035 | 3,364
Amortized cost, due after 5 years through 10 years | 1,343 | 1,466
Amortized cost, due after 10 years | 20,489 | 11,889
Available-for-sale securities, amortized cost | 22,867 | 16,719
Fair value, due within 5 years | 1,036 | 3,363
Fair value, due after 5 years through 10 years | 1,367 | 1,491
Fair value, due after 10 years | 20,284 | 11,979
Fair value, total | $ 22,687 | $ 16,833

X
- Definition Amount after adjustments of available-for-sale debt securities at cost, maturing in the first fiscal year through the fifth fiscal year following the latest fiscal year. Adjustments include, but are not limited to, accretion, amortization, collection of cash, previous other-than-temporary impairments (OTTI) recognized in earnings less cumulative-effect adjustments, and fair value hedge accounting adjustments. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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- Definition Fair value of available-for-sale debt securities maturing in the first fiscal year through the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
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- Definition Amortized cost 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 after 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27198-111563 + Details
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