Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Net revenues	$ 2,194,000	$ 2,115,000	$ 7,039,000	$ 7,807,000
Cost of revenues	1,799,000	1,678,000	5,070,000	5,491,000
Gross profit	395,000	437,000	1,969,000	2,316,000
Selling, general and administrative	1,686,000	1,982,000	5,346,000	5,665,000
Research and development	266,000	470,000	955,000	1,317,000
Total operating expenses	1,952,000	2,452,000	6,301,000	6,982,000
Loss from operations	(1,557,000)	(2,015,000)	(4,332,000)	(4,666,000)
Other expenses:
Interest expense	(2,118,000)	(1,391,000)	(6,689,000)	(3,572,000)
Loss on retirement of debt	(87,000)		(326,000)
Other income (expenses)	(22,000)	(3,000)	(27,000)	1,000
Total other expenses	(2,183,000)	(1,388,000)	(6,988,000)	(3,573,000)
Net loss	(3,740,000)	(3,403,000)	(11,320,000)	(8,239,000)
Loss attributable to noncontrolling interests	(125,000)	(163,000)	(359,000)	(402,000)
Net loss attributable to common stockholders	(3,615,000)	(3,240,000)	(10,961,000)	(7,837,000)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net loss	(3,740,000)	(3,403,000)	(11,320,000)	(8,239,000)
Other comprehensive loss:
Foreign currency translation adjustments gain (loss)	9,000	22,000	3,000	67,000
Comprehensive loss	(3,731,000)	(3,381,000)	(11,317,000)	(8,172,000)
Comprehensive loss attributable to noncontrolling interests	(125,000)	(163,000)	(359,000)	(402,000)
Comprehensive loss attributable to common stockholders	$ (3,606,000)	$ (3,218,000)	$ (10,958,000)	$ (7,770,000)
Earnings Per Share [Abstract]
Basic and diluted net loss per common share (in dollars per share)	$ (1.44)	$ (4.66)	$ (5.26)	$ (18.49)
Weighted average common shares outstanding basicand diluted (in shares)	2,503,631	694,795	2,083,095	423,897