Investments - Amortized Cost and Fair Value of Securities by Contractual Maturity (Details) $ in Thousands	Sep. 30, 2021 USD ($)
Amortized Cost
Due in one year or less	$ 8,741
Due after one year through five years	20,828
Due after five years through ten years	15,696
Due after ten years	2,304
Fair Value
Due in one year or less	8,731
Due after one year through five years	20,841
Due after five years through ten years	15,808
Due after ten years	2,319
Debt Securities
Amortized Cost
Amortized Cost	68,652
Fair Value
Fair value	68,788
Residential and commercial mortgage-backed securities
Amortized Cost
Without single maturity date	15,380
Amortized Cost	15,380
Fair Value
Without single maturity date	15,388
Fair value	15,388
Other loan-backed and structured securities
Amortized Cost
Without single maturity date	5,703
Amortized Cost	5,703
Fair Value
Without single maturity date	5,701
Fair value	$ 5,701

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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