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Condensed Consolidated Balance Sheets - USD ($)
$ in Thousands
Sep. 30, 2025
Dec. 31, 2024
Current assets:    
Cash and cash equivalents $ 38,734 $ 39,980
Restricted cash 3,046 3,004
Receivables, net ($18,277 and $1,808 from related party) 20,353 5,250
Expendable parts and supplies, net 16,629 29,172
Assets held for sale 33,759 80,723
Prepaid expenses and other current assets 2,105 2,577
Total current assets 114,626 160,706
Property and equipment, net 31,499 203,567
Lease and equipment deposits 587 524
Operating lease right-of-use assets 6,801 6,588
Deferred tax asset 318  
Deferred heavy maintenance, net   5,351
Other assets 5,102 6,829
Total assets 158,933 383,565
Current liabilities:    
Current portion of long-term debt and finance leases ($5,812 and $7,512 from related party) 68,009 143,275
Current portion of deferred revenue 5,638 4,955
Current maturities of operating leases 1,651 1,430
Accounts payable 57,480 60,932
Accrued compensation 10,487 6,705
Other accrued expenses 26,690 35,444
Total current liabilities 169,955 252,741
Noncurrent liabilities:    
Long-term debt and finance leases, excluding current portion ($27,012 and $25,505 from related party) 27,012 83,786
Noncurrent operating lease liabilities 6,427 6,484
Deferred credits from related party   2,036
Deferred income taxes   2,937
Deferred revenue, net of current portion 6,318 10,329
Other noncurrent liabilities 1,859 26,675
Total noncurrent liabilities 41,616 132,247
Total liabilities 211,571 384,988
Commitments and contingencies (Note 14)
Stockholders' equity:    
Common stock of no par value and additional paid-in capital, 125,000,000 shares authorized; 41,879,859 (2025) and 41,331,719 (2024) shares issued and outstanding, 4,899,497 (2025) and 4,899,497 (2024) warrants issued and outstanding 273,340 272,655
Accumulated deficit (325,978) (274,078)
Total stockholders' equity (52,638) (1,423)
Total liabilities and stockholders' equity $ 158,933 $ 383,565