Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Current Assets
Cash and cash equivalents	$ 6,727	$ 20,776
Restricted cash	767	755
Marketable securities	97,287	92,747
Receivables, net	3,857	5,592
Sales lease receivable, net	455	753
Spare parts and supplies, net	5,994	4,810
Contract costs	299	111
Prepaid expenses and other	2,687	2,115
Total Current Assets	118,073	127,659
Property and Equipment
Flight property and equipment	260,944	260,471
Ground property and equipment	8,808	8,792
Less accumulated depreciation and amortization	(213,934)	(193,457)
Net Property and Equipment	55,818	75,806
Long-Term Assets
Operating lease right-of-use asset	7,159	10,270
Intangibles	5,300	5,300
Long-term lease receivable, net	1,184	1,171
Long-term investments	4,275	4,275
Long-term contract costs	9	578
Long-term restricted investments (SESP)	3,755	3,194
Other	7,636	8,051
Total Long-Term Assets	29,318	32,839
Total Assets	203,209	236,304
Current Liabilities
Accounts payable	16,333	12,385
Accrued payroll and employee benefits	11,728	11,495
Current portion of operating lease liability	3,526	4,938
Other accrued expenses	168	67
Contract liabilities, net	1,648	100
Total Current Liabilities	33,403	28,985
Long-Term Liabilities
Long-term promissory note	4,275	4,275
Deferred tax liability	1,536	1,983
Long-term operating lease liability	1,473	3,010
Long-term contract liabilities, net	297	2,984
Long-term deferred compensation (SESP)	3,755	3,216
Other	1,992	2,007
Total Long-Term Liabilities	13,328	17,475
Total Liabilities	46,731	46,460
Commitments and Contingencies (Note 7)
Mezzanine Equity (Note 10)
Series C Convertible Redeemable Preferred Stock, $0.01 par value per share, 4,000,000 shares authorized at September 30, 2024 and December 31, 2023. Shares issued and outstanding at September 30, 2024 and December 31, 2023 were 0 and 4,000,000, respectively.	0	13,200
Stockholders’ Equity
Common Stock, $0.01 par value per share, 100,000,000 shares authorized, 71,981,140 shares issued at September 30, 2024 and 55,481,140 at December 31, 2023, 58,534,309 shares outstanding at September 30, 2024 and 43,126,355 shares outstanding at December 31, 2023	720	555
Additional paid-in capital	285,680	284,340
Retained deficit	(108,374)	(88,719)
Treasury stock	(21,548)	(19,532)
Total Stockholders’ Equity	156,478	176,644
Total Liabilities, Mezzanine Equity, and Stockholders’ Equity	$ 203,209	$ 236,304