Revenue Recognition - Information by Type (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue
Total Devices revenue	$ 7,148,510	$ 4,436,642	$ 19,090,173	$ 13,523,624
Disposables, service and other	3,285,656	2,802,039	9,412,091	8,269,487
Amortization of extended warranty agreements	473,136	460,415	1,439,457	1,378,218
Total revenue	10,907,302	7,699,096	29,941,721	23,171,329
MRI Compatible IV Infusion Pump Systems
Disaggregation of Revenue
Total Devices revenue	3,369,068	2,153,699	9,329,182	6,693,692
MRI Compatible Patient Vital Signs Monitoring Systems
Disaggregation of Revenue
Total Devices revenue	$ 3,779,442	$ 2,282,943	$ 9,760,991	$ 6,829,932