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Note 4 - Loans - Activity in Accretable Yield on PCI loans (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Peoples Bank of Virginia [Member] |  |  |  |
Beginning balance |  | $ 2,590 | $ 3,388 | $ 4,392
Accretion |  | (950) | (1,263) | (1,379)
Reclassifications from nonaccretable difference(1) | [1] | 17 | 8 | 825
Other changes, net |  | 233 | 457 | (450)
Ending balance |  | 1,890 | 2,590 | 3,388
Waccamaw Bank [Member] |  |  |  |
Beginning balance |  | 14,639 | 19,465 | 21,834
Accretion |  | (3,317) | (6,269) | (5,664)
Reclassifications from nonaccretable difference(1) | [1] | 1,440 | 1,770 | 3,378
Other changes, net |  | (188) | (327) | (83)
Ending balance |  | 12,574 | 14,639 | 19,465
Others [Member] |  |  |  |
Beginning balance |  | 17,229 | 22,853 | 26,226
Accretion |  | (4,267) | (7,532) | (7,043)
Reclassifications from nonaccretable difference(1) | [1] | 1,457 | 1,778 | 4,203
Other changes, net |  | 45 | 130 | (533)
Ending balance |  | $ 14,464 | $ 17,229 | $ 22,853
[1] | Respresents changes attributable to expected loss assumptions

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- Definition Amount of removals, extensions, and other events in the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality. + References No definition available. + Details
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- Definition Amount of the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118938799&loc=d3e13503-111538 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=118939070&loc=d3e15032-111544 + Details
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- Definition Amount of accretion recognized for the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities, with evidence of deterioration of credit quality. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118938799&loc=d3e13503-111538 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=118939070&loc=d3e15032-111544 + Details
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- Definition Amount of reclassification (to) from nonaccretable difference (from) to the excess of a loan's cash flows expected to be collected over the investor's initial investment in acquired loans not accounted for as debt securities with evidence of deterioration of credit quality. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=118939070&loc=d3e15032-111544 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 30 -Section 15 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118938799&loc=d3e13503-111538 + Details
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