Note 5 - Goodwill and Intangibles (Details Textual) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024	Dec. 31, 2023
Goodwill	$ 35,624,660		$ 35,624,660
Amortization of Intangible Assets	$ 513,058	$ 513,058
Scott-Rice [Member]
Goodwill, Impairment Loss			0	$ 0
Sleepy Eye Telephone Company [Member]
Goodwill, Impairment Loss			0	0
Hutchinson Telephone Company [Member]
Goodwill, Impairment Loss			$ 4,900,000	$ 9,300,000