Leases - Components of lease cost (Details) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Leases
Operating lease costs	$ 692,404	$ 656,130
Short-term lease costs	100,975	79,606
Lease costs - discontinued operations	40,021	31,281
Total lease costs	$ 833,400	$ 767,017