Revenue, Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Disaggregation of Revenue [Abstract]
Revenues	$ 3,725	$ 1,366	$ 8,750	$ 1,598
Accessories and Parts [Member]
Disaggregation of Revenue [Abstract]
Revenues	2,400	1,212	6,509	1,288
Product [Member]
Disaggregation of Revenue [Abstract]
Revenues	1,299	72	2,066	216
License Fees and Other [Member]
Disaggregation of Revenue [Abstract]
Revenues	26	82	175	94
United States [Member]
Disaggregation of Revenue [Abstract]
Revenues	3,639	1,298	8,177	1,406
United States [Member] | Accessories and Parts [Member]
Disaggregation of Revenue [Abstract]
Revenues	2,375	1,128	6,278	1,204
United States [Member] | Product [Member]
Disaggregation of Revenue [Abstract]
Revenues	1,248	98	1,759	195
United States [Member] | License Fees and Other [Member]
Disaggregation of Revenue [Abstract]
Revenues	16	72	140	7
International [Member]
Disaggregation of Revenue [Abstract]
Revenues	86	68	573	192
International [Member] | Accessories and Parts [Member]
Disaggregation of Revenue [Abstract]
Revenues	25	84	231	84
International [Member] | Product [Member]
Disaggregation of Revenue [Abstract]
Revenues	51	(26)	307	21
International [Member] | License Fees and Other [Member]
Disaggregation of Revenue [Abstract]
Revenues	$ 10	$ 10	$ 35	$ 87