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2. Investment securities (Details 1) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2020 | Dec. 31, 2019
Investment Securities With Continuous Unrealized Loss Position |  |
Less than 12 months, fair value | $ 10,857 | $ 38,661
Less than 12 months, unrealized losses | 39 | 387
12 months or more, fair value | 4,454 | 12,502
12 months or more, unrealized losses | 222 | 351
Total, fair value | 15,311 | 51,163
Total, unrealized losses | 261 | 738
Mortgage-Backed Securities |  |
Investment Securities With Continuous Unrealized Loss Position |  |
Less than 12 months, fair value | 10,857 | 28,395
Less than 12 months, unrealized losses | 39 | 177
12 months or more, fair value | 0 | 6,351
12 months or more, unrealized losses | 0 | 50
Total, fair value | 10,857 | 34,746
Total, unrealized losses | 39 | 227
U.S. Government Sponsored Enterprises |  |
Investment Securities With Continuous Unrealized Loss Position |  |
Less than 12 months, fair value | 0 | 2,899
Less than 12 months, unrealized losses | 0 | 10
12 months or more, fair value | 4,454 | 6,151
12 months or more, unrealized losses | 222 | 301
Total, fair value | 4,454 | 9,050
Total, unrealized losses | $ 222 | 311
State and Political Subdivisions |  |
Investment Securities With Continuous Unrealized Loss Position |  |
Less than 12 months, fair value |  | 7,367
Less than 12 months, unrealized losses |  | 200
12 months or more, fair value |  | 0
12 months or more, unrealized losses |  | 0
Total, fair value |  | 7,367
Total, unrealized losses |  | $ 200

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