CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash Flows from Operating Activities:
Net loss	$ (20,198,843)	$ (16,348,802)
Reconciliation of net loss to net cash used in operating activities:
Depreciation and amortization	272,725	70,908
Changes in fair value of warrant liabilities	(31,000)	80,000
Stock-based compensation	3,974,536	4,073,505
Amortization on right-of-use assets	337,530	134,919
Changes in operating assets and liabilities:
Prepaid expenses and deposits	(840,703)	(1,764,345)
Interest receivable	56,054	30,032
Accounts payable and accrued expenses	3,955,609	137,161
Lease liability	(166,723)	(136,812)
Net cash used in operating activities	(12,640,815)	(13,723,434)
Cash Flows from Investing Activities:
Purchase of property and equipment	(2,484,825)	(362,121)
Purchase of construction in progress	(4,557,581)	0
Net cash used in investing activities	(7,042,406)	(362,121)
Cash Flows from Financing Activities:
Proceeds from Issuance of Common Stock	2,186,009
Proceeds from exercise of stock options	0	57,744
Proceeds from exercise of warrants	550,000	758,733
Net cash provided by financing activities	2,736,009	816,477
Net decrease in cash	(16,947,212)	(13,269,078)
Cash and cash equivalents at beginning of the period	43,903,949	61,746,748
Cash and cash equivalents at end of the period	26,956,737	48,477,670
Supplemental schedule of non-cash financing activities:
Issuance of common stock as commitment fee for future financing	345	0
Recognition of right-of-use assets and lease liability from new operating lease agreements	11,077,636	0
Stock warrants cashless exercised	$ 0	$ 4