Securities Available for Sale - Maturities (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Amortized Cost
Amortized Cost, within 1 year	$ 200
Amortized Cost, due after 5 years through 10 years	9,227
Amortized Cost, due after 10 years	174,108
Amortized Cost	272,909	$ 159,164
Fair Value
Fair Value, within 1 year	200
Fair Value, due after 5 years through 10 years	9,198
Fair Value, due after 10 years	172,634
Fair Value	$ 277,505	142,226
Weighted- average Yield, due within 1 year	0.02%
Weighted- average Yield, due after 5 years through 10 years	0.94%
Weighted- average Yield, due after 10 years	1.25%
Weighted- average Yield	3.75%
U.S. agency residential mortgage-backed securities
Amortized Cost
Amortized Cost, due after 5 years through 10 years	$ 425
Amortized Cost, due after 10 years	93,520
Fair Value
Fair Value, due after 5 years through 10 years	423
Fair Value, due after 10 years	92,595
Fair Value	93,018
Other asset-backed securities
Amortized Cost
Amortized Cost, within 1 year	200
Amortized Cost, due after 5 years through 10 years	1,006
Amortized Cost, due after 10 years	27,649
Amortized Cost	28,655
Fair Value
Fair Value, within 1 year	200
Fair Value, due after 5 years through 10 years	1,027
Fair Value, due after 10 years	27,819
Fair Value	28,846	$ 200
Commercial mortgage-backed securities
Amortized Cost
Amortized Cost, due after 5 years through 10 years	3,269
Amortized Cost, due after 10 years	28,153
Amortized Cost	31,422
Fair Value
Fair Value, due after 5 years through 10 years	3,225
Fair Value, due after 10 years	27,966
Fair Value	31,191
U.S. agency securities
Amortized Cost
Amortized Cost, due after 5 years through 10 years	4,057
Amortized Cost, due after 10 years	21,949
Amortized Cost	26,006
Fair Value
Fair Value, due after 5 years through 10 years	4,058
Fair Value, due after 10 years	21,415
Fair Value	25,473
Municipal securities
Amortized Cost
Amortized Cost, due after 5 years through 10 years	470
Amortized Cost, due after 10 years	2,837
Amortized Cost	3,307
Fair Value
Fair Value, due after 5 years through 10 years	465
Fair Value, due after 10 years	2,839
Fair Value	3,304
Asset-backed securities related to Structured Program transactions
Amortized Cost
Amortized Cost	89,374
Fair Value
Fair Value	$ 95,473
Weighted- average Yield	8.92%

Amortized cost of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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