Investments (Narrative) (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($) item	Dec. 31, 2020 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Number of investments in a single issuer exceeds 10% of shareholders' equity | item	0
Percent of shareholders equity benchmark for investments in a single issuer	10.00%
Securities pledged as collateral | $	$ 160,300	$ 137,400
Number of equity investments | item	1
Equity securities | $	$ 481	$ 391