Note 17 - Quarterly Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Quarterly Financial Information [Table Text Block]

	Year Ended December 31, 2022
	March 31,		June 30,		September 30,		December 31,
	2022		2022		2022		2022
Sales	$	31,002,746	$	31,902,027	$	32,189,623	$	32,660,531
Gross Profit		6,366,405		6,768,491		6,309,803		7,588,082
Operating Income		1,397,321		2,375,527		1,999,678		2,760,946
Net Income		1,065,875		1,171,264		1,254,545		3,069,719
Net Income per Common Share:
Basic	$	0.31	$	0.34	$	0.36	$	0.88
Diluted	$	0.31	$	0.34	$	0.36	$	0.88

	Year Ended December 31, 2021
	March 31,		June 30,		September 30,		December 31,
	2021		2021		2021		2021
Sales	$	23,994,004	$	26,449,885	$	26,397,857	$	27,320,481
Gross Profit		6,002,921		5,780,290		5,397,709		4,731,545
Operating Income		2,325,460		2,119,797		1,868,781		676,214
Net Income		3,143,417		1,247,305		1,197,877		64,699
Net Income per Common Share:
Basic	$	0.93	$	0.37	$	0.35	$	0.01
Diluted	$	0.93	$	0.37	$	0.35	$	0.01