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Note 14 - Parent Company Financial Statements (Unaudited) - Condensed Statements of Cash Flows (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Jun. 30, 2022
Dec. 31, 2023
Dec. 31, 2022
Net loss   $ (46,420) $ (107,758)
Share-based compensation   7,660 6,410
Depreciation   6,933 5,535
Debt related fees and amortization expense   6,524 7,363
Gain on litigation $ (1,400) 0 (1,400)
Warrants issued for working capital agreement   409 0
Prepaid expenses   (1,838) (1,777)
Accounts payable   13,726 2,183
Accrued interest expense   23,558 15,501
Other liabilities   (1,757) (10,125)
Net cash provided by (used in) operating activities   13,825 (22,866)
Capital expenditures   (33,119) (39,157)
Net cash used in investing activities   (23,687) (31,306)
Proceeds from the exercise of stock options   133 206
Proceeds from issuance of common stock in equity offering   21,718 11,987
Net cash provided by financing activities   9,094 53,633
Net change in cash and cash equivalents for period   (719) (752)
Cash, cash equivalents, and restricted cash at beginning of period   6,999 7,751
Cash, cash equivalents, and restricted cash at end of period   6,280 6,999
Income taxes paid   20 10
Fair value of warrants issued to subordinated debt holders   1,278 1,939
Fair value of stock issued to a related party for guarantee fees   0 2,012
Fair value of warrants issued to lender for debt issuance costs   318 3,158
Fair value of stock issued to lender   0 1,335
Parent Company [Member]      
Net loss   (46,420) (107,758)
Share-based compensation   7,660 6,410
Depreciation   51 29
Debt related fees and amortization expense   782 1,776
Subsidiary portion of net losses   25,370 91,561
Gain on litigation   0 (1,400)
Warrants issued for working capital agreement   409 0
Prepaid expenses   608 (111)
Accounts payable   699 (90)
Accrued interest expense   785 778
Other liabilities   85 (4,625)
Other assets   (276) (207)
Net cash provided by (used in) operating activities   (10,911) (13,001)
Capital expenditures   (65) (128)
Subsidiary advances, net   (9,707) 1,222
Net cash used in investing activities   (9,772) 1,094
Proceeds from the exercise of stock options   133 206
Proceeds from issuance of common stock in equity offering   21,718 11,987
Net cash provided by financing activities   21,851 12,193
Net change in cash and cash equivalents for period   1,168 286
Cash, cash equivalents, and restricted cash at beginning of period   286 0
Cash, cash equivalents, and restricted cash at end of period   1,454 286
Income taxes paid   7 7
Fair value of warrants issued to subordinated debt holders   1,278 1,939
Fair value of stock issued to a related party for guarantee fees   0 2,012
Fair value of warrants issued for capital expenditures   318 0
Fair value of warrants issued to lender for debt issuance costs   0 3,158
Fair value of stock issued to lender   $ 0 $ 1,335