Balance Sheets - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Current assets
Cash	$ 21,948,512	$ 26,702,804
Accounts receivable	3,827,254	1,786,471
Prepaid expenses and other current assets	180,194	321,393
Inventory	1,610,860	1,092,763
Total current assets	27,566,820	29,903,431
Property and equipment, net	650,195	235,036
Operating lease right of use asset	2,029,912	2,418,503
Patents, net	359,060	293,789
Deposits	52,000	52,000
Total assets	30,657,987	32,902,759
Current liabilities
Accounts payable	1,567,069	727,919
Accrued expenses	726,688	391,567
Sales tax payable	57,561	92,130
Deferred revenue	135,801	37,778
Operating lease liabilities, current	467,891	521,006
Total current liabilities	2,955,010	1,770,400
Deferred revenue, noncurrent	117,950	69,711
Operating lease liabilities, noncurrent	1,607,221	1,910,357
Total liabilities	4,680,181	3,750,468
Stockholders' equity
Preferred stock, $0.001 par value, 10,000,000 authorized, none outstanding as of December 31, 2021 and 2020, respectively.	0	0
Common stock, $0.001 par value, 350,000,000 shares authorized, 8,971,711 and 8,482,387 shares issued or issuable and outstanding as of December 31, 2021 and 2020, respectively.	8,972	8,482
Additional paid-in-capital	83,587,479	80,166,415
Accumulated deficit	(57,618,645)	(51,022,606)
Total stockholders' equity	25,977,806	29,152,291
Total liabilities and stockholders' equity	$ 30,657,987	$ 32,902,759