Statements of Comprehensive Loss - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Statements of Comprehensive Loss [Abstract]
Sales	$ 303,113	$ 326,006	$ 624,518	$ 655,781
Cost of sales	102,353	107,627	225,028	200,669
Gross margin	200,760	218,379	399,490	455,112
Operating expenses:
Research and development	1,472,924	894,868	2,893,987	1,889,890
Sales and marketing	63,177	21,828	132,040	44,647
General and administrative	1,181,938	1,051,399	2,629,293	1,943,386
Depreciation and amortization	142,684	151,359	286,883	304,812
Total operating expenses	2,860,723	2,119,454	5,942,203	4,182,735
Loss from operations	(2,659,963)	(1,901,075)	(5,542,713)	(3,727,623)
Other income (expense):
Interest income, net	26,745	144	29,199	308
Other income	0	821,515	0	821,515
Interest expense	(883)	(3,643)	(3,617)	(7,491)
Other income, net	25,862	818,016	25,582	814,332
Net loss	(2,634,101)	(1,083,059)	(5,517,131)	(2,913,291)
Net loss attributable to common stockholders, basic (in dollars per share)	(2,634,101)	(1,083,059)	(5,517,131)	(2,913,291)
Net loss attributable to common stockholders, diluted (in dollars per share)	$ (2,634,101)	$ (1,083,059)	$ (5,517,131)	$ (2,913,291)
Net loss per share attributable to common stockholders, basic (in dollars per share)	$ (0.22)	$ (0.52)	$ (0.47)	$ (1.89)
Net loss per share attributable to common stockholders, diluted (in dollars per share)	$ (0.22)	$ (0.52)	$ (0.47)	$ (1.89)
Weighted-average shares used in computing net loss per share attributable to common stockholders, basic (in shares)	11,812,988	2,076,516	11,808,601	1,538,780
Weighted-average shares used in computing net loss per share attributable to common stockholders, diluted (in shares)	11,812,988	2,076,516	11,808,601	1,538,780