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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, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Peoples Bank of Virginia [Member] |  |  |  |  |
Beginning balance | $ 3,388 | $ 4,392 |  | $ 3,589 |
Accretion | (1,263) | (1,379) |  | (1,237) |
Reclassifications from nonaccretable difference(1) | 8 | 825 | [1] | 287 | [1]
Other changes, net | 457 | (450) |  | 1,753 |
Ending balance | 2,590 | 3,388 |  | 4,392 |
Waccamaw Bank [Member] |  |  |  |  |
Beginning balance | 19,465 | 21,834 |  | 26,109 |
Accretion | (6,269) | (5,664) |  | (5,380) |
Reclassifications from nonaccretable difference(1) | 1,770 | 3,378 | [1] | 1,620 | [1]
Other changes, net | (327) | (83) |  | (515) |
Ending balance | 14,639 | 19,465 |  | 21,834 |
Others [Member] |  |  |  |  |
Beginning balance | 22,853 | 26,226 |  | 29,698 |
Accretion | (7,532) | (7,043) |  | (6,617) |
Reclassifications from nonaccretable difference(1) | 1,778 | 4,203 | [1] | 1,907 | [1]
Other changes, net | 130 | (533) |  | 1,238 |
Ending balance | $ 17,229 | $ 22,853 |  | $ 26,226 |
[1] | Represents 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=82894507&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=82894903&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=82894507&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=82894903&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=82894903&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=82894507&loc=d3e13503-111538 + Details
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