Note 8 - Earnings Per Share (Tables)

12 Months Ended

Mar. 31, 2022

Notes Tables

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

	Year Ended March 31,
	2022		2021
Numerator (basic and diluted)
Net earnings	$	14,066,322	$	11,424,475
Less: Allocation to unvested restricted stock units		543,054		492,462
Net earnings attributable to common shareholders		13,523,268		10,932,013
Denominator (basic and diluted)
Weighted average common shares outstanding		6,623,769		6,703,654