Enterprise Resource Management System Recoverability	9 Months Ended
Enterprise Resource Management System Recoverability	Jan. 31, 2013
ERP Recoverability [Abstract]
Impaired Assets to be Disposed of by Method Other than Sale [Table Text Block]	ENTERPRISE RESOURCE MANAGEMENT SYSTEM RECOVERABILITY During the fourth quarter of fiscal year 2011, we determined that the enterprise resource management system (the “ERP system”) implemented in November 2010 was not appropriate for long-term use based on certain functionalities not performing as represented. After discussions with the ERP system provider, we received a partial refund of $40,000 subsequent to April 30, 2011, which was applied to the carrying amount of the software. Subsequent to the change in carrying amount, we evaluated the asset for existence of impairment. After determining that impairment existed, we evaluated recoverability by comparing undiscounted cash flows provided by the ERP system to the carrying value of the asset. Since an ERP system is integral to the operations of our business, entity level cash flows were used in this test. Since we expected to generate undiscounted cash flows in excess of the carrying amount of the software, no impairment loss adjustment was necessary. A new ERP system was implemented on November 1, 2012.

Tabular disclosure for impaired assets to be disposed of by a method other than sale. Includes disclosure of the carrying value of the asset, the facts and circumstances leading to impairment, the amount of impairment loss, the income statement classification, the method for determining fair value and the segment in which the impaired long-lived assets being disposed of by a method other than sale is reported.

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