Revenue, Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Disaggregation of Revenue [Abstract]
Revenue	$ 2,852	$ 1,862
Rental income	343	254
Total Revenues	3,195	2,116
Accessories and Parts [Member]
Disaggregation of Revenue [Abstract]
Revenue	2,128	1,571
Product [Member]
Disaggregation of Revenue [Abstract]
Revenue	707	253
Total Revenues	645	253
License Fees and Other [Member]
Disaggregation of Revenue [Abstract]
Revenue	17	38
United States [Member]
Disaggregation of Revenue [Abstract]
Revenue	2,831	1,509
Rental income	343	254
Total Revenues	3,174	1,763
United States [Member] | Accessories and Parts [Member]
Disaggregation of Revenue [Abstract]
Revenue	2,132	1,435
United States [Member] | Product [Member]
Disaggregation of Revenue [Abstract]
Revenue	691	41
United States [Member] | License Fees and Other [Member]
Disaggregation of Revenue [Abstract]
Revenue	8	33
International [Member]
Disaggregation of Revenue [Abstract]
Revenue	21	353
Rental income	0	0
Total Revenues	21	353
International [Member] | Accessories and Parts [Member]
Disaggregation of Revenue [Abstract]
Revenue	(4)	136
International [Member] | Product [Member]
Disaggregation of Revenue [Abstract]
Revenue	16	212
International [Member] | License Fees and Other [Member]
Disaggregation of Revenue [Abstract]
Revenue	$ 9	$ 5