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Condensed Balance Sheets - USD ($)
Sep. 30, 2023
Dec. 31, 2022
Current assets    
Cash and cash equivalents $ 2,425,480 $ 15,046,894
Accounts receivable, net 0 5,556,577
Prepaid expenses and other current assets 702,231 1,493,982
Total current assets 3,127,711 22,097,453
Long-term prepaid insurance 371,191 467,694
Operating lease right-of-use assets 493,473 1,192,054
Financing lease right-of-use assets 3,722,173 3,896,873
Property, plant and equipment, net 20,621,749 23,250,853
Total assets 28,336,297 50,904,927
Current liabilities    
Accounts payable 1,083,169 3,679,116
Notes payable 541,644 772,665
Operating lease liabilities, current portion 528,778 490,794
Finance lease liabilities, current portion 129,489 132,788
Deferred grant income 1,627,421 0
Accrued expenses and other current liabilities 5,300,442 9,917,981
Total current liabilities 9,210,943 14,993,344
Operating lease liabilities, noncurrent 0 361,225
Finance lease liabilities, noncurrent 3,452,442 3,629,642
Warrant liabilities 417,102 320,930
Notes payable, noncurrent   541,644
Total liabilities 13,080,487 19,846,785
Commitments and contingencies (Note 16)
Stockholders equity    
Preferred stock; $0.0001 par value; 10,000,000 shares authorized, 0 shares issued and outstanding at September 30, 2023 and December 31, 2022, respectively
Common stock; $0.0001 par value; 490,000,000 shares authorized at September 30, 2023 and December 31, 2022; 52,865,814 and 50,940,920 shares issued, respectively, and 52,319,156 and 50,394,262 outstanding at September 30, 2023 and December 31, 2022, respectively 5,286 5,094
Treasury stock, at cost; 546,658 shares held at September 30, 2023 and December 31, 2022 (5,521,246) (5,521,246)
Additional paid-in capital 87,978,548 84,444,049
Accumulated deficit (67,206,778) (47,869,755)
Total stockholders' equity 15,255,810 31,058,142
Total liabilities and stockholders equity $ 28,336,297 $ 50,904,927