Note 4 - Earnings Per Common Share - Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended
		Sep. 30, 2016	Sep. 30, 2015
Net of Treasury Shares [Member]
BASIC EARNINGS PER SHARE
Weighted average shares outstanding, net of treasury shares (in shares)	[1]	24,998	24,501
Restricted Stock Units (RSUs) [Member]
BASIC EARNINGS PER SHARE
Weighted average vested restricted stock units outstanding (in shares)		37	27
Deferred Compensation Plan [Member]
BASIC EARNINGS PER SHARE
Weighted average vested restricted stock units outstanding (in shares)		240	236
Net income		$ 829	$ 3,750
Weighted average shares outstanding (in shares)		25,275	24,764
Basic earnings per share (in dollars per share)		$ 0.03	$ 0.15
DILUTED EARNINGS PER SHARE
Net income		$ 829	$ 3,750
Weighted average shares outstanding (in shares)		25,275	24,764
Impact of common shares to be issued under stock option plans, and contingently issuable shares, if any (in shares)	[2]	637	430
Weighted average shares outstanding (in shares)	[3]	25,912	25,194
Basic earnings per share (in dollars per share)		$ 0.03	$ 0.15

[1] Includes shares accounted for like treasury stock.

[2] 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.

[3] Options to purchase 1,654,450 common shares and 1,683,500 common shares at September 30, 2016 and 2015, respectively, were not included in the computation of the three month period for diluted earnings per share, respectively, because the exercise price was greater than the average fair market value of the common shares.