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Condensed Balance Sheets (Unaudited) - USD ($)
Sep. 30, 2021
Dec. 31, 2020
Current assets    
Cash $ 23,078,452 $ 26,702,804
Accounts receivable 2,475,824 1,786,471
Prepaid and other current assets 231,730 321,393
Inventory, net 2,126,640 1,092,763
Total current assets 27,912,646 29,903,431
Property and equipment, net 642,444 235,036
Operating lease right of use asset 2,143,208 2,418,503
Patents, net 341,314 293,789
Deposits 52,000 52,000
Total assets 31,091,612 32,902,759
Current liabilities    
Accounts payable 790,468 727,919
Accrued expenses 428,765 391,567
Sales tax payable 73,439 92,130
Deferred revenue 43,281 37,778
Operating lease liabilities, current 451,605 521,006
Total current liabilities 1,787,558 1,770,400
Deferred revenue, noncurrent 116,315 69,711
Operating lease liabilities, noncurrent 1,731,837 1,910,357
Total liabilities 3,635,710 3,750,468
Commitments and contingencies (Note 8)
Stockholders' equity    
Preferred stock, $0.001 par value, 10,000,000 authorized, none outstanding as of September 30, 2021 and December 31, 2020, respectively. 0 0
Common stock, $0.001 par value, 350,000,000 shares authorized, 8,948,248 and 8,482,387 shares issued or issuable and outstanding as of September 30, 2021 and December 31, 2020, respectively. 8,950 8,482
Additional paid-in-capital 83,050,786 80,166,415
Accumulated deficit (55,603,834) (51,022,606)
Total stockholders' equity 27,455,902 29,152,291
Total liabilities and stockholders' equity $ 31,091,612 $ 32,902,759