The following table summarizes securities with unrealized losses as of December 31, 2020 and December 31, 2019, aggregated by major security type and length of time in a continuous unrealized loss position (in thousands, before tax): | | | | | | | | | | | | | | | | | | | | | Less than 12 Months | | 12 Months or Longer | | Total | | | Fair | | Unrealized | | Fair | | Unrealized | | Fair | | Unrealized | December 31, 2020 | | Value | | Losses | | Value | | Losses | | Value | | Losses | Corporate bonds | | | 3,489 | | | (11) | | | — | | | — | | | 3,489 | | | (11) | Corporate CMO and MBS | | | 880 | | | (40) | | | 566 | | | (13) | | | 1,446 | | | (53) | Total | | $ | 4,369 | | $ | (51) | | $ | 566 | | $ | (13) | | $ | 4,935 | | $ | (64) |
| | | | | | | | | | | | | | | | | | | | | Less than 12 Months | | 12 Months or Longer | | Total | | | Fair | | Unrealized | | Fair | | Unrealized | | Fair | | Unrealized | December 31, 2019 | | Value | | Losses | | Value | | Losses | | Value | | Losses | GNMA mortgage-backed securities - residential | | $ | 28,203 | | $ | (193) | | $ | 4,450 | | $ | (142) | | $ | 32,653 | | $ | (335) | FNMA mortgage-backed securities - residential | | | — | | | — | | | 2,347 | | | (29) | | | 2,347 | | | (29) | Corporate CMO and MBS | | | 7,780 | | | (45) | | | — | | | — | | | 7,780 | | | (45) | Total | | $ | 35,983 | | $ | (238) | | $ | 6,797 | | $ | (171) | | $ | 42,780 | | $ | (409) |
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