Leases (Lease Cost) (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Leases [Abstract]
Operating lease expense	$ 1,214,000	$ 891,000	$ 2,152,000	$ 2,516,000
Sublease income	(70,000)	(38,000)	(124,000)	(76,000)
Net lease expense	1,144,000	853,000	2,028,000	2,440,000
Short-term lease costs	0	0	0	0
Rental income from owned properties	$ 600,000	$ 600,000	$ 1,200,000	$ 1,200,000