Investments (Major Categories of net Investment Income) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Schedule of Investments [Line Items]
Investment income	$ 10,586	$ 13,704
Investment expenses	(871)	(784)
Investment income, net of expenses	9,715	12,920
Cash and Cash Equivalents [Member]
Schedule of Investments [Line Items]
Investment income	13	0
Equity Securities [Member]
Schedule of Investments [Line Items]
Investment income	2,404	1,369
Debt Securities [Member] \| U.S. Treasury securities and obligations of U.S. Government [Member]
Schedule of Investments [Line Items]
Investment income	578	885
Debt Securities [Member] \| Corporate Bonds [Member]
Schedule of Investments [Line Items]
Investment income	4,371	7,223
Debt Securities [Member] \| Corporate bank loans [Member]
Schedule of Investments [Line Items]
Investment income	1,427	1,688
Debt Securities [Member] \| Municipal Bonds [Member]
Schedule of Investments [Line Items]
Investment income	1,713	2,347
Debt Securities [Member] \| Collateralized Mortgage Backed Securities [Member]
Schedule of Investments [Line Items]
Investment income	$ 80	$ 192

Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein.

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