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Securities (Details) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 USD ($) security | Dec. 31, 2019 USD ($) security
Securities |  |
Amortized Cost | $ 10,331 | $ 10,806
Gross Unrealized Gains | 375 | 200
Fair Value | $ 10,706 | 11,006
Estimated remaining term | 3 years 15 days |
Securities pledged to secure public deposits | $ 0 | $ 0
Securities pledged to secure public deposits |  | us-gaap:AssetPledgedAsCollateralMember
Securities of any one issuer, other than U.S. Government, greater than 10% of stockholders' equity | 0 | $ 0
Sales of securities | 0 | 0
Available-for-sale Securities, Debt Securities | $ 10,706 | $ 11,006
Number of securities held with unrealized losses | security | 24 | 24
Federal agency mortgage-backed securities |  |
Securities |  |
Amortized Cost | $ 7,317 | $ 7,792
Gross Unrealized Gains | 299 | 164
Fair Value | $ 7,616 | 7,956
Number of securities held | security | 22 |
Available-for-sale Securities, Debt Securities | $ 7,616 | 7,956
Federal agency debt |  |
Securities |  |
Amortized Cost | 3,014 | 3,014
Gross Unrealized Gains | 76 | 36
Fair Value | $ 3,090 | 3,050
Number of securities held | security | 2 |
Estimated remaining term | 5 years 3 months 18 days |
Available-for-sale Securities, Debt Securities | $ 3,090 | $ 3,050

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