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Long-Term Debt (Mortgage) (Narrative) (Details) (USD $)
1 Months Ended 12 Months Ended
Dec. 31, 2005
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2010
Debt Instrument [Line Items]        
Carrying value of mortgage   $ 11,374,000 $ 12,552,000  
Mortgage [Member]
       
Debt Instrument [Line Items]        
Mortgage loan principal amount 15,000,000      
Debt maturity date after extension 7/1/2013      
Principal and interest payable in monthly installments 100,000      
Collateral building net   16,300,000 15,400,000  
Interest expense   $ 400,000 $ 600,000 $ 600,000
Canadian Prime [Member] | Mortgage [Member]
       
Debt Instrument [Line Items]        
Interest addition to floating rate 0.50%