Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Net revenues	$ 2,115,000	$ 3,158,000	$ 7,807,000	$ 6,876,000
Cost of revenues	1,678,000	2,043,000	5,491,000	4,067,000
Gross profit	437,000	1,115,000	2,316,000	2,809,000
Expenses:
Selling, general and administrative	1,982,000	1,677,000	5,665,000	7,171,000
Research and development	470,000	543,000	1,317,000	1,544,000
Total operating expenses	2,452,000	2,220,000	6,982,000	8,715,000
Loss from operations	(2,015,000)	(1,105,000)	(4,666,000)	(5,906,000)
Other expenses:
Interest expense	(1,391,000)	(1,530,000)	(3,572,000)	(4,573,000)
Gain on extinguishment of debt				652,000
Other income/(expense)	3,000	843,000	(1,000)	833,000
Total other expense	(1,388,000)	(687,000)	(3,573,000)	(3,088,000)
Net loss	(3,403,000)	(1,792,000)	(8,239,000)	(8,994,000)
Loss attributable to noncontrolling interests	(163,000)	(18,000)	(402,000)	(269,000)
Net loss attributable to common stockholders	(3,240,000)	(1,774,000)	(7,837,000)	(8,725,000)
Net loss	(3,403,000)	(1,792,000)	(8,239,000)	(8,994,000)
Other comprehensive loss:
Foreign currency translation adjustments gain (loss)	22,000	(1,000)	67,000	12,000
Comprehensive loss	(3,381,000)	(1,793,000)	(8,172,000)	(8,982,000)
Comprehensive loss attributable to noncontrolling interests	(163,000)	(18,000)	(402,000)	(269,000)
Comprehensive loss attributable to common stockholders	$ (3,218,000)	$ (1,775,000)	$ (7,770,000)	$ (8,713,000)
Per share data:
Basic and diluted net loss per common share (in dollars per share)	$ (0.10)	$ (0.15)	$ (0.41)	$ (0.74)
Weighted average common shares outstanding – basic and diluted (in shares)	31,265,797	11,911,784	19,075,331	11,757,211