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Long-Term Debt (Schedule of Deferred Financing Charges) (Details) (BMO Credit Agreement [Member], USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Mar. 31, 2012
BMO Credit Agreement [Member]
   
Debt Instrument [Line Items]    
Deferred financing charges - current $ 83 $ 85
Deferred financing charges - long-term 261 288
Total $ 344 $ 373