Statements of Operations and Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Revenue:
Grant revenue	$ 24	$ 24
Sales	576	258
Total revenue	600	282
Cost of sales	356	281
Gross profit	244	1
Operating expenses:
Research and development	1,954	1,494
Selling, general and administrative	7,224	6,440
Total operating expenses	9,178	7,934
Net operating loss	(8,934)	(7,933)
Other income (expense):
Interest income	4	3
Interest expense	(11)	(28)
Payroll Protection Program loan forgiveness	673
Other income		21
Total other income	666	(4)
Net loss and comprehensive loss	(8,268)	(7,937)
Deemed dividend-warrant price protection-revaluation adjustment		436
Net loss attributable to common shareholders	$ (8,268)	$ (8,373)
Weighted average common shares outstanding - basic and fully diluted (in Shares)	11,191,814	3,006,475
Net loss per common share - basic and fully diluted (in Dollars per share)	$ (0.74)	$ (2.78)