Supplemental Cash Flow Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Cash paid during the period for:
Interest	$ 408,000	$ 315,000
Federal income taxes (net of refunds)	800,000	1,200,000
State income taxes (net of refunds)	66,000	408,000
Non-cash transactions:
Barter revenue	2,418,000	2,442,000
Barter expense	2,325,000	2,531,000
Non-cash rent expense	54,000
Prepaid rent received as part of sale and lease back transaction	5,244,000
Use of treasury shares for 401(k) match	$ 290,000	$ 268,000