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Long-Term Debt (Mortgage) (Narrative) (Details) (USD $)
1 Months Ended 3 Months Ended 9 Months Ended
Dec. 31, 2005
Mar. 31, 2012
Mar. 31, 2011
Mar. 31, 2012
Mar. 31, 2011
Jun. 30, 2011
Debt Instrument [Line Items]            
Original mortgage maturity term, years 5 years          
Mortgage [Member]
           
Debt Instrument [Line Items]            
Mortgage loan principal amount $ 15,000,000          
Debt maturity date Jan. 01, 2011          
Debt maturity date after extension July 1, 2012          
Mortgage loan fixed interest rate 5.25%          
Principal and interest payable in monthly installments 100,000          
Carrying value of mortgage   11,852,000   11,852,000   12,552,000
Collateral building net   16,400,000   16,400,000   15,400,000
Interest expense   $ 100,000 $ 100,000 $ 300,000 $ 400,000  
Canadian Prime [Member] | Mortgage [Member]
           
Debt Instrument [Line Items]            
Interest addition to floating rate 0.50%