Consolidated Balance Sheets - USD ($)	Jun. 30, 2022	Dec. 31, 2021
Current assets
Cash and cash equivalents	$ 16,616,493	$ 33,206,712
Restricted cash	0	6,338,306
Accounts receivable, net	9,612,672	8,010,708
Prepaid expenses	1,521,376	864,513
Total current assets	27,750,541	48,420,239
Long-term prepaid insurance	535,082
Operating lease right-of-use assets	2,085,923	2,615,204
Financing lease right-of-use assets	3,946,306	4,019,322
Property, plant and equipment, net	24,837,073	24,314,455
Total assets	59,154,925	79,369,220
Current liabilities
Accounts payable	4,943,581	4,458,525
Forward share purchase liability		6,338,306
Notes payable	25,013	25,013
Operating lease liabilities, current portion	1,169,139	1,142,413
Finance lease liabilities, current portion	140,767	161,050
Due to related party		2,367
Deferred grant income		100,000
Accrued expenses and other current liabilities	9,858,719	12,455,888
Total current liabilities	16,137,219	24,683,562
Operating lease liabilities, noncurrent	1,061,122	1,653,185
Finance lease liabilities, noncurrent	3,694,834	3,762,430
Warrant liabilities	1,140,478	10,720,130
Total liabilities	22,033,653	40,819,307
Commitments and contingencies (Note 17)
Stockholders equity
Preferred stock; $0.0001 par value; 10,000,000 shares authorized, 0 shares issued and outstanding at June 30, 2022 and December 31, 2021, respectively
Common stock; $0.0001 par value; 490,000,000 shares authorized at June 30, 2022 and December 31, 2021; 43,577,543 and 43,487,279 shares issued, respectively, and 43,030,885 and 43,487,279 outstanding at June 30, 2022 and December 31, 2021, respectively	4,358	4,349
Treasury stock, at cost; 546,658 and 0 shares held at June 30, 2022 and December 31, 2021, respectively	(5,521,246)
Additional paid-in capital	75,557,244	67,674,515
Accumulated deficit	(32,919,084)	(29,128,951)
Total stockholders' equity	37,121,272	38,549,913
Total liabilities and stockholders equity	$ 59,154,925	$ 79,369,220