Fair Value Measurements (Fair Value, Investment Securities Measured on Recurring Basis) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Fair value of securities at the beginning of year	$ 52	$ 898	$ 308
Unrealized loss on fair value adjustment for equity securities	(10)	(492)	(266)	$ (423)
Fair value of securities at the end of year	42	406	42	406
Fair Value, Inputs, Level 1 [Member]
Fair value of securities at the beginning of year			308	1,448
Securities sold				(619)
Unrealized loss on fair value adjustment for equity securities			(266)	(423)
Fair value of securities at the end of year	$ 42	$ 406	$ 42	$ 406