Note 1 - Basic and Diluted Earnings Per Share (Details) - USD ($)	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Numerator:
Net income	$ 3,552,000	$ 3,005,000
Denominator:
Basic weighted-average shares outstanding (in shares)	12,314,071	13,403,877
Weighted Average Number Diluted Shares Outstanding Adjustment	175,863	94,305
Diluted weighted-average diluted shares (in shares)	12,489,934	13,498,182
Basic earnings per common share (in dollars per share)	$ 0.29	$ 0.22
Diluted earnings per common share (in dollars per share)	$ 0.28	$ 0.22