Note 7 - Net Income Per Share (Tables)

12 Months Ended

Mar. 31, 2020

Notes Tables

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

	Year Ended March 31,
	2020		2019		2018
Net income (numerator):
Net income	$	25,851	$	37,740	$	37,283
Shares (denominator)
Weighted average number of common shares outstanding used in basic computation		20,041		20,461		20,346
Common shares issuable upon the vesting of restricted stock		4		20		77
Common shares issuable upon conversion of preferred shares		10		10		10
Shares used in diluted computation		20,055		20,491		20,433
Net income per common share:
Basic	$	1.29	$	1.84	$	1.83
Diluted	$	1.29	$	1.84	$	1.82