Note 6 - Net Income Per Share Computations (Tables)

12 Months Ended

Dec. 31, 2021

Notes Tables

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

	Year Ended December 31,
	2021		2020
Net income (numerator) amounts used for basic and diluted per share computations:	$	11,798,153	$	1,062,014
Weighted average shares (denominator) of common stock outstanding:
Basic		4,776,007		4,697,021
Plus dilutive effect of stock options		51,754		770
Diluted		4,827,761		4,697,791
Net income per common share:
Basic	$	2.47	$	0.23
Diluted		2.44		0.23