Annual report pursuant to Section 13 and 15(d)

Note 8 - Shareholders' Equity (Details Textual)

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Note 8 - Shareholders' Equity (Details Textual) - $ / shares
Jun. 30, 2015
Jun. 30, 2014
Nov. 21, 2002
Common Class B [Member]      
Common Stock, Shares, Issued 0 0  
Common Stock, Shares, Outstanding 0 0  
Common Stock, Shares Authorized 600,000 600,000  
Common Stock, Par or Stated Value Per Share $ 0.01 $ 0.01  
Common Class A [Member]      
Common Stock, Shares, Issued 48,884,586 48,577,620  
Common Stock, Shares Authorized 150,000,000 150,000,000  
Common Stock, Par or Stated Value Per Share $ 0.01 $ 0.01  
Series A Preferred Stock [Member]      
Preferred Stock, Shares Authorized 30,000    
Series B Preferred Stock [Member]      
Preferred Stock, Shares Authorized 30,000    
Series C Preferred Stock [Member]      
Preferred Stock, Shares Authorized 155,010    
Preferred Stock, Shares Issued 0 0  
Preferred Stock, Shares Outstanding 0 0  
Preferred Stock, Shares Authorized 1,055,000 1,055,000  
Preferred Stock, Par or Stated Value Per Share $ 0.01 $ 0.01  
Preferred Stock, Capital Shares Reserved for Future Issuance 839,990    
Stock Repurchase Program, Number of Shares Authorized to be Repurchased     2,000,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased 2,500,000