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Securities - Investments Classified by Contractual Maturity Date (Details)
$ in Thousands
Dec. 31, 2020
USD ($)
Securities  
Amortized Cost, Within one year $ 1,347
Estimated Fair Value, Within one year 1,367
Amortized Cost, After one year but less than five years 11,055
Estimated Fair Value, After one year but less than five years 11,230
Amortized Cost, After five years but less than ten years 23,718
Estimated Fair Value, After five years but less than ten years 24,326
Amortized Cost, After ten years 26,041
Estimated Fair Value, After ten years 26,860
Amortized Cost, Total investment securities 62,161
Estimated Fair Value, Total investment securities 63,783
Mortgage-backed securities GSE residential amortized cost 113,553
Mortgage-backed securities GSE residential fair value 117,363
Amortized Cost, Total investment and mortgage-backed securities 175,714
Estimated Fair Value, Total investment and mortgage-backed securities $ 181,146