Related Parties (Details) - Affiliated Entity - Relay - USD ($)	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Related Party Transaction [Line Items]
Amount collected on behalf	$ 16,000	$ 747,000	$ 360,000	$ 1,295,000
Payable	0		0		$ 16,000
Facilities Sharing Agreement
Related Party Transaction [Line Items]
Reduction of rent expense	96,000	96,000	288,000	288,000
Due from related parties	0		0		0
Master Services Agreement
Related Party Transaction [Line Items]
Revenue from related parties	425,000	541,000	1,374,000	1,657,000
Accounts receivable, related parties	142,000		142,000		170,000
Legal services
Related Party Transaction [Line Items]
Revenue from related parties	6,000	$ 16,000	19,000	$ 63,000
Accounts receivable, related parties	$ 2,000		$ 2,000		$ 2,000

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