Note 6 - Share-based Compensation (Details) - Fair Value Assumptions (USD $)	3 Months Ended		6 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Fair Value Assumptions [Abstract]
Weighted average risk-free interest rate	1.40%	0.65%	1.40%	0.65%
Expected weighted average volatility	0.78%	0.84%	0.78%	0.84%
Expected weighted average life of options (years)	6 years	5 years	6 years	5 years
Weighted average fair value of options granted (in Dollars per share)	$ 2.78	$ 2.72	$ 2.75	$ 2.72