Notes Payable, Convertible Promissory Notes Payable (HealthTronics), in Default (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Aug. 06, 2020
Convertible Notes Payable Related Parties [Abstract]
Accrued interest, related parties	$ 289	$ 77
Health Tronics [Member] | Convertible Note [Member]
Convertible Notes Payable Related Parties [Abstract]
Principal amount			$ 1,400
Maturity date	Aug. 06, 2021
Accrued interest rate			2.00%
Interest rate			12.00%
Accrued interest, related parties	$ 241	$ 66
Common stock conversion price (in dollars per share)			$ 0.10