Statements of Comprehensive Loss - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Statements of Comprehensive Loss [Abstract]
Sales	$ 347,456	$ 269,581	$ 971,974	$ 925,362
Cost of sales	131,451	105,403	356,479	306,072
Gross margin	216,005	164,178	615,495	619,290
Operating expenses:
Research and development	1,648,160	1,140,577	4,542,147	3,030,467
Sales and marketing	90,374	43,284	222,414	87,931
General and administrative	1,395,063	1,087,363	4,024,356	3,030,749
Depreciation and amortization	139,597	144,399	426,480	449,211
Total operating expenses	3,273,194	2,415,623	9,215,397	6,598,358
Loss from operations	(3,057,189)	(2,251,445)	(8,599,902)	(5,979,068)
Other income (expense):
Interest income, net	80,373	1,649	109,572	1,957
Other income	0	0	0	821,515
Interest expense	(6,005)	(7,055)	(9,622)	(14,546)
Other expense	(22)	(2,850)	(22)	(2,850)
Other income (expense), net	74,346	(8,256)	99,928	806,076
Net loss	(2,982,843)	(2,259,701)	(8,499,974)	(5,172,992)
Net loss attributable to common stockholders, basic	(2,982,843)	(2,259,701)	(8,499,974)	(5,172,992)
Net loss attributable to common stockholders, diluted	$ (2,982,843)	$ (2,259,701)	$ (8,499,974)	$ (5,172,992)
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (0.25)	$ (0.19)	$ (0.72)	$ (1.04)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (0.25)	$ (0.19)	$ (0.72)	$ (1.04)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (in shares)	11,813,610	11,799,720	11,810,289	4,996,680
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (in shares)	11,813,610	11,799,720	11,810,289	4,996,680