Investment Securities (Maturity Dates of Marketable Debt Securities) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Fair Value	$ 81,643	$ 103,906
Total debt securities available for sale by maturity dates
Debt Securities, Available-for-sale [Line Items]
Fair Value	81,643
Under 1 Year	44,047
1 Year up to 5 Years	37,596
More than 5 Years	0
U.S. Government securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	779
Under 1 Year	779
1 Year up to 5 Years	0
More than 5 Years	0
Corporate securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	53,814
Under 1 Year	33,165
1 Year up to 5 Years	20,649
More than 5 Years	0
U.S. mortgage-backed securities
Debt Securities, Available-for-sale [Line Items]
Fair Value	27,050
Under 1 Year	10,103
1 Year up to 5 Years	16,947
More than 5 Years	$ 0

Fair value of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), with single maturity date and allocated without single maturity date, maturing in second through fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount 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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