Consolidated Statements of Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Revenue	$ 162,766	$ 152,895	$ 327,317	$ 307,327
Costs and expenses:
Instructional costs and services	78,423	76,216	153,367	148,641
Selling and promotional	35,048	33,838	70,253	66,294
General and administrative	38,147	34,426	74,554	70,703
Depreciation and amortization	4,088	5,232	8,080	10,360
Loss on assets held for sale (Note 4)	0	0	1,527	0
Loss on leases (Note 5)	0	779	0	3,715
Loss on disposals of long-lived assets	35	184	265	212
Total costs and expenses	155,741	150,675	308,046	299,925
Income from operations before interest and income taxes	7,025	2,220	19,271	7,402
Interest expense, net	(1,108)	(785)	(1,995)	(911)
Income before income taxes	5,917	1,435	17,276	6,491
Income tax expense (benefit)	1,421	(16)	3,887	1,197
Equity investment loss	0	(1,080)	0	(4,407)
Net income	4,496	371	13,389	887
Preferred stock dividends	1,319	1,531	2,751	3,066
Loss on redemption of preferred stock	3,501	0	3,501	0
Net income (loss) available to common stockholders basic	(324)	(1,160)	7,137	(2,179)
Net income (loss) available to common stockholders diluted	$ (324)	$ (1,160)	$ 7,137	$ (2,179)
(Loss) income per common share:
Basic (in dollars per share)	$ (0.02)	$ (0.07)	$ 0.40	$ (0.12)
Diluted (in dollars per share)	$ (0.02)	$ (0.06)	$ 0.39	$ (0.12)
Weighted average number of common shares:
Basic (in shares)	18,034	17,627	17,937	17,568
Diluted (in shares)	18,597	18,134	18,496	17,986