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Long-Term Debt (Schedule Of Maturities Of Long-term Debt) (Details) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2013	Apr. 30, 2013
Long-Term Debt [Abstract]
Remainder of 2014	$ 675
2015	1,350
2016	13,631
Total debt	$ 15,656	$ 17,689

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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