Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Cash flows from operating activities:
Net loss	$ (8,761)	$ (19,514)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	450	145
Straight-line rent adjustments, net	(25)	12
Equity-based compensation	478	86
Non-cash operating lease expense	485	539
Unrealized loss on warrants	4,210	13,938
Changes in operating assets and liabilities:
Prepaid expenses and other assets	(705)	(3,500)
Right-of-use asset initial direct costs	(9)	0
Accounts payable, accrued expenses and other liabilities	(676)	(1,870)
Net cash used in operating activities	(4,553)	(10,164)
Cash flows from investing activities:
Purchases of long-lived assets	(175)	(6)
Payments for cost of construction	(8,948)	(12,428)
Issuance of notes receivable	(1,321)	0
Purchases of held-to-maturity investments	0	(166,560)
Proceeds from available for sale investments	6,713	0
Proceeds from held-to-maturity investments	40,044	0
Net cash provided by (used in) investing activities	36,313	(178,994)
Cash flows from financing activities:
Proceeds from issuance of BOC PIPE	0	45,000
Proceeds from Yellowstone trust	0	15,691
Payments for equity issuance costs	0	(8,822)
Net cash provided by financing activities	0	51,869
Net increase (decrease) in cash and restricted cash	31,760	(137,289)
Cash and restricted cash, beginning of year	41,396	203,935
Cash and restricted cash, end of period	$ 73,156	$ 66,646