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Note 15 - Share-Based Payments (Details) - Options granted under our plan have an exercise price equal to the closing market price on the date
12 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2011
Options granted under our plan have an exercise price equal to the closing market price on the date [Abstract]      
Expected lives (years) 6 years 6 years 6 years
Expected volatility 72.60% 72.90% 72.80%
Risk-free interest rate 0.75% 1.92% 2.05%
Dividend yield 1.089% 0.84% 0.154%