Note 16 - Segment and Related Information - Geographical Information (Details) - USD ($)	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021
Sales	$ 32,660,531	$ 32,189,623	$ 31,902,027	$ 31,002,746	$ 27,320,481	$ 26,397,857	$ 26,449,885	$ 23,994,004	$ 127,754,927	$ 104,162,227
UNITED STATES
Sales									125,097,522	102,678,670
CANADA
Sales									1,175,246	292,927
UNITED KINGDOM
Sales									443,808	0
PUERTO RICO
Sales									413,684	619,625
MEXICO
Sales									52,549	309,978
Other Foreign Countries [Member]
Sales									$ 572,118	$ 261,027