BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Assets, Current [Abstract]
Cash and cash equivalents	$ 10,852	$ 75,196
Prepaid and other current assets	762	892
Total Current Assets	11,614	76,088
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment	132,870	90,335
Less: Accumulated depreciation	(470)	(257)
Net property, plant and equipment	132,400	90,078
Operating lease right-of-use assets	336	87
Finance lease right-of-use assets	20
Other long-term assets	5,461	2,155
Total Assets	149,831	168,408
Current Liabilities:
Accounts payable	5,957	23,008
Accrued liabilities	1,696	1,963
Operating lease liability, current	117	91
Finance lease liability, current	5
Total Current Liabilities	7,775	25,062
Operating lease liability, net of current	220
Finance lease liability, net of current	15
Other long-term liabilities	1,378	1,378
Total Liabilities	9,388	26,440
Commitments and Contingencies (see note 8)
Stockholders' Equity:
Common stock, 100,000,000 shares authorized, $.001 par value Issued shares - 55,387,794 and 48,405,543, respectively Outstanding shares - 55,387,633 and 48,405,382, respectively	55	48
Paid-in capital	501,675	495,456
Accumulated deficit	(361,029)	(353,278)
Less: Treasury stock (161 shares), at cost	(258)	(258)
Total Stockholders' Equity	140,443	141,968
Total Liabilities and Stockholders' Equity	$ 149,831	$ 168,408