Consolidated Statements of Operations and Comprehensive Loss - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Revenue:
Revenue	$ 2,432,000	$ 1,861,000
Cost of revenue
Cost of Goods and Services Sold	(1,204,000)	(945,000)
Gross profit	1,228,000	916,000
Operating expenses:
Selling, general and administrative expenses	7,473,000	6,140,000
Research and development	1,338,000	1,472,000
Total operating expenses	8,811,000	7,612,000
Operating loss	(7,583,000)	(6,696,000)
Other income (expense):
Grant income	137,000	218,000
Tax credit income	111,000	63,000
Interest expense	(1,923,000)	(3,996,000)
Loss on extinguishment of debt	(442,000)	(1,029,000)
Total other (expense) income	(2,117,000)	(4,744,000)
Net loss	(9,700,000)	(11,440,000)
Net loss attributable to noncontrolling interest	(1,268,000)	(750,000)
Net loss attributable to common stockholders	$ (8,432,000)	$ (10,690,000)
Net loss per share attributable to common stockholders:
Loss per share attributable to stockholders – basic and diluted (in dollars per share)	$ (0.05)	$ (0.08)
Weighted average number of common shares outstanding: (in shares)	195,993,575	152,086,221
Comprehensive loss attributable to common stockholders
Net loss	$ (9,700,000)	$ (11,440,000)
Foreign currency translation adjustment	(2,000)	(9,000)
Comprehensive loss	(9,702,000)	(11,449,000)
Comprehensive loss attributable to noncontrolling interest	(1,268,000)	(750,000)
Comprehensive loss attributable to stockholders	(8,434,000)	(10,699,000)
Product [Member]
Revenue:
Revenue	1,825,000	1,460,000
Cost of revenue
Cost of Goods and Services Sold	(743,000)	(627,000)
Service [Member]
Revenue:
Revenue	607,000	401,000
Cost of revenue
Cost of Goods and Services Sold	$ (461,000)	$ (318,000)