Fair Value Disclosures - Change in Contingent Consideration Liability (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Change in Contingent Consideration Liability [Roll Forward]
Beginning balance	$ 55	$ 160
Contingent consideration from new acquisition	0	0
Payment of contingent consideration	58	61
Adjustment of contingent consideration	3	10
Ending balance	0	109
Girard Partners [Member]
Change in Contingent Consideration Liability [Roll Forward]
Beginning balance	55	160
Contingent consideration from new acquisition	0	0
Payment of contingent consideration	58	61
Adjustment of contingent consideration	3	10
Ending balance	$ 0	$ 109