Note 5 - Earnings per Common Share - Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Net Income		$ 3,105	$ 2,208	$ 6,238	$ 4,198
Weighted average shares outstanding during the period, net of treasury shares (in shares)		26,625	26,367	26,589	26,343
Weighted average vested restricted stock units outstanding (in shares)		637	252	531	222
Weighted average shares outstanding (in shares)		27,292	26,639	27,144	26,580
Basic income per share (in dollars per share)		$ 0.11	$ 0.08	$ 0.23	$ 0.16
Basic (in shares)		27,292	26,639	27,144	26,580
Impact of common shares to be issued under stock option plans, and contingently issuable shares, if any (in shares)	[1]	775	721	751	581
Weighted average shares outstanding (in shares)		28,067	27,360	27,895	27,161
Diluted income per share (in dollars per share)		$ 0.11	$ 0.08	$ 0.22	$ 0.15
Anti-dilutive securities (b) (in shares)	[2]	981	1,062	984	1,101
Restricted Stock Units (RSUs) [Member]
Weighted average vested restricted stock units outstanding (in shares)		30	20	24	15

[1] Calculated using the “Treasury Stock” method as if dilutive securities were exercised and the funds were used to purchase common shares at the average market price during the period.

[2] Anti-dilutive securities were excluded from the computation of diluted net income per share for the three and six months ended December 31, 2021 and December 31, 2020 because the exercise price was greater than the average fair market price of the common shares or because the assumed proceeds from the award’s exercise or vesting was greater than the average fair market price of the common shares.