Condensed Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Operating Revenues
Total Operating Revenues	$ 51,072	$ 77,930	$ 110,204	$ 144,905
Operating Expenses
Payroll and related costs	29,953	27,694	59,721	54,295
Aircraft fuel and oil	221	34	323	85
Aircraft maintenance, materials and repairs	17,869	16,336	37,218	30,837
Other rents	1,474	1,657	3,068	3,270
Depreciation, amortization and obsolescence	6,370	6,674	12,727	13,318
Purchased services, legal and other	7,532	3,514	11,974	7,279
Total Operating Expenses	63,419	55,909	125,031	109,084
(Loss) Income from Operations	(12,347)	22,021	(14,827)	35,821
Other Income (Expense)
Interest income	1,429	1,382	2,795	2,166
Interest expense	(11)	0	(12)	0
(Loss) gain on marketable securities	(795)	(3,602)	945	(6,025)
Gain on extinguishment of debt	70	0	70	0
Other, net	(1)	(3)	(14)	(3)
Total Other Income (Expense)	692	(2,223)	3,784	(3,862)
Net (Loss) Income Before Taxes	(11,655)	19,798	(11,043)	31,959
Income Tax (Benefit) Expense	(2,486)	4,717	(2,756)	7,615
Net (Loss) Income	(9,169)	15,081	(8,287)	24,344
Preferred stock dividends	305	198	557	396
Net (loss) income available to common stockholders	$ (9,474)	$ 14,883	$ (8,844)	$ 23,948
Basic (Loss) Earnings per share	$ (0.21)	$ 0.32	$ (0.2)	$ 0.51
Diluted (Loss) Earnings per share	$ (0.21)	$ 0.24	$ (0.2)	$ 0.38
Weighted average common shares:
Basic	44,277	46,519	44,626	47,075
Diluted	44,277	63,019	44,626	63,773
Contract Revenues [Member]
Operating Revenues
Total Operating Revenues	$ 50,970	$ 77,923	$ 110,007	$ 144,891
Contract Service and Other [Member]
Operating Revenues
Total Operating Revenues	$ 102	$ 7	$ 197	$ 14