Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Operating Revenues
Total Operating Revenues	$ 50,056	$ 68,410	$ 160,260	$ 213,315
Operating Expenses
Payroll and related costs	29,444	26,801	89,165	81,096
Aircraft fuel and oil	115	49	438	134
Aircraft maintenance, materials and repairs	11,175	17,494	48,393	48,331
Other rents	1,459	1,617	4,527	4,887
Depreciation, amortization and obsolescence	6,398	6,639	19,125	19,957
Purchased services, legal and other	6,537	3,310	18,511	10,589
Total Operating Expenses	55,128	55,910	180,159	164,994
(Loss) Income from Operations	(5,072)	12,500	(19,899)	48,321
Other Income (Expense)
Interest income	1,540	1,732	4,335	3,898
Interest expense	0	0	(12)	0
Loss on marketable securities	(955)	(3,749)	(10)	(9,774)
Gain on extinguishment of debt	0	53	70	53
Other, net	0	(7)	(14)	(10)
Total Other Income (Expense)	585	(1,971)	4,369	(5,833)
Net (Loss) Income Before Taxes	(4,487)	10,529	(15,530)	42,488
Income Tax (Benefit) Expense	(799)	2,507	(3,555)	10,122
Net (Loss) Income	(3,688)	8,022	(11,975)	32,366
Preferred stock dividends	358	198	915	594
Net (loss) income available to common stockholders	$ (4,046)	$ 7,824	$ (12,890)	$ 31,772
Basic (Loss) Earnings per share (in dollars per share)	$ (0.09)	$ 0.17	$ (0.29)	$ 0.68
Diluted (Loss) Earnings per share (in dollars per share)	$ (0.09)	$ 0.13	$ (0.29)	$ 0.50
Weighted average common shares:
Basic (in shares)	43,654	45,776	44,299	46,637
Diluted (in shares)	43,654	62,276	44,299	63,268
Contract revenues
Operating Revenues
Total Operating Revenues	$ 49,958	$ 68,389	$ 159,965	$ 213,280
Contract services and other
Operating Revenues
Total Operating Revenues	$ 98	$ 21	$ 295	$ 35