Revision of Previously Issued Consolidated Financial Statements (Details) - USD ($) $ in Thousands	3 Months Ended						6 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Sep. 30, 2023	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2024	Jun. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2024	Dec. 31, 2023
Revision of Previously Issued Consolidated Financial Statements
Net operating revenue	$ 28,694	$ 29,716	$ 25,294	$ 29,856	$ 29,967	$ 25,912	$ 55,010	$ 55,879	$ 83,704	$ 85,735		$ 115,504
Station operating expense	24,034	24,518	23,611	23,467	23,199	22,311	48,129	45,510	72,163	68,977	$ 96,905	92,930
Corporate G&A	2,966	3,049	3,129	2,852	2,472	2,616	6,178	5,088	9,144	7,940	12,611	10,966
Other operating expense (income), net	49	6	971	45		80	977	80	1,026	125	1,048	120
Operating income	1,645	2,143	(2,417)	3,492	4,296	905	(274)	5,201	1,371	8,693	$ 2,355	11,488
Previously reported
Revision of Previously Issued Consolidated Financial Statements
Net operating revenue	28,118	28,742	24,664	29,149	29,175	25,304	53,406	54,479	81,524	83,628		112,773
Station operating expense	23,458	23,544	22,981	22,760	22,407	21,703	46,525	44,110	69,983	66,870		90,199
Corporate G&A	2,966	3,049	3,129	2,852	2,472	2,616	6,178	5,088	9,144	7,940		10,966
Other operating expense (income), net	49	6	971	45		80	977	80	1,026	125		120
Operating income	1,645	2,143	(2,417)	3,492	4,296	905	(274)	5,201	1,371	8,693		11,488
Digital Expense Reclassification
Revision of Previously Issued Consolidated Financial Statements
Net operating revenue	576	974	630	707	792	608	1,604	1,400	2,180	2,107		2,731
Station operating expense	$ 576	$ 974	$ 630	$ 707	$ 792	$ 608	$ 1,604	$ 1,400	$ 2,180	$ 2,107		$ 2,731