Lease Commitments (Narrative) (Details)	12 Months Ended
	Dec. 31, 2019 USD ($) lease
Number of operating leases identified | lease	16
Operating lease related to occupancy expenses	$ 758,000
Operating lease related to equipment expenses	$ 160,000
Minimum
Operating lease, term of contract	1 year
Maximum
Operating lease, term of contract	7 years