Summary of Significant Accounting Policies - Stock-Based Compensation (Details Narrative) (USD $)	12 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2012
Summary of Significant Accounting Policies (Textual) [Abstract]
Stock-based compensation expense	$ 43,000	$ 231,000	$ 451,000
Options completing vesting	34,498
Total unrecognized compensation costs related to stock options	$ 14,000
Shares authorized for future grant under the Company's stock option plans	8,333