Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenue
Revenue from Contract with Customer, Including Assessed Tax	$ 2,777,000	$ 5,014,000	$ 6,046,000	$ 9,773,000
Cost of revenue
Cost of Goods and Services Sold	(1,356,000)	(2,877,000)	(3,136,000)	(5,390,000)
Gross profit	1,421,000	2,137,000	2,910,000	4,383,000
Selling, general and administrative expenses	2,688,000	2,404,000	5,250,000	4,629,000
Research and development	535,000	623,000	1,324,000	1,407,000
Total operating expenses	3,223,000	3,027,000	6,574,000	6,036,000
Operating loss:	(1,802,000)	(890,000)	(3,664,000)	(1,653,000)
Other income (expense):
Interest expense	(80,000)	(2,000)	(145,000)	(14,000)
PPP loan forgiveness	0	97,000	0	97,000
Grant income	0	15,000	6,000	15,000
Total other expense	(80,000)	110,000	(139,000)	98,000
Net loss	(1,882,000)	(780,000)	(3,803,000)	(1,555,000)
Net loss attributable to noncontrolling interest	(690,000)	(339,000)	(1,456,000)	(704,000)
Net loss attributable to common shareholders	$ (1,192,000)	$ (441,000)	$ (2,347,000)	$ (851,000)
Net loss per share attributable to common shareholders:
Loss per share attributable to shareholders – basic and diluted (in dollars per share)	$ (0.004)	$ (0.001)	$ (0.008)	$ (0.003)
Weighted average number of common shares outstanding: (in shares)	303,196,989	296,436,219	302,240,928	295,372,509
Comprehensive loss:
Net loss	$ (1,882,000)	$ (780,000)	$ (3,803,000)	$ (1,555,000)
Foreign currency translation	0	(61,000)	(20,000)	35,000
Comprehensive loss	(1,882,000)	(841,000)	(3,823,000)	(1,520,000)
Comprehensive loss attributable to noncontrolling interest	(690,000)	(339,000)	(1,456,000)	(704,000)
Comprehensive loss attributable to common stockholders	(1,192,000)	(502,000)	(2,367,000)	(816,000)
Product [Member]
Revenue
Revenue from Contract with Customer, Including Assessed Tax	2,006,000	4,889,000	4,809,000	9,464,000
Cost of revenue
Cost of Goods and Services Sold	(907,000)	(2,204,000)	(2,417,000)	(4,643,000)
Service [Member]
Revenue
Revenue from Contract with Customer, Including Assessed Tax	771,000	125,000	1,237,000	309,000
Cost of revenue
Cost of Goods and Services Sold	$ (449,000)	$ (673,000)	$ (719,000)	$ (747,000)