Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Net revenues	$ 10,483,000	$ 9,294,000
Cost of revenues	7,773,000	5,801,000
Gross profit	2,710,000	3,493,000
Expenses:
Selling, general and administrative	7,244,000	8,515,000
Research and development	1,659,000	2,209,000
Total operating expenses	8,903,000	10,724,000
Loss from operations	(6,193,000)	(7,231,000)
Other income / (expense):
Interest expense	(5,616,000)	(6,103,000)
Gain on extinguishment of debt	0	652,000
Employee retention tax credit and other income / (expense)	(3,000)	802,000
Total other expense	(5,619,000)	(4,649,000)
Net loss	(11,812,000)	(11,880,000)
Loss attributable to non-controlling interests	(542,000)	(501,000)
Net loss attributable to common stockholders	(11,270,000)	(11,379,000)
Net loss	(11,812,000)	(11,880,000)
Other comprehensive loss:
Foreign currency translation adjustments	80,000	15,000
Comprehensive loss	(11,732,000)	(11,865,000)
Comprehensive loss attributable to non-controlling interests	(542,000)	(501,000)
Comprehensive loss attributable to common stockholders	$ (11,190,000)	$ (11,364,000)
Per share data:
Basic and diluted net loss per common share (in dollars per share)	$ (20.45)	$ (43.41)
Weighted average common shares outstanding basic and diluted (in shares)	550,993	262,135