Note 2 - Earnings Per Share, Basic and Diluted (Details) - shares	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Shares issued – beginning of period (in shares)	23,573,057	22,089,650	19,576,619
Shares held by subsidiaries (Note 9) (in shares)	(704,309)	(704,309)
Shares outstanding – beginning of period (in shares)	22,868,748	21,385,341	18,872,310
Weighted average shares for fully vested stock bonuses (in shares)	600,000	675,000
Weighted average shares issued during the period (in shares)	759,940	998,146
Basic weighted average shares – end of period (in shares)	22,745,281	20,545,456