Referral Fees (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Referral Fees
Referral fees	$ 374,000	$ 154,000	$ 1,134,000	$ 427,000