Earnings per Share (Details) (USD $)	12 Months Ended
	Apr. 30, 2012	Apr. 30, 2011
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net Income (Loss) Attributable to Parent	$ (16,000)	$ 1,256,000
Earnings Per Share, Basic	$ 0.00	$ 0.21
Common Stock [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net Income (Loss) Attributable to Parent	(16,000)	1,256,000
Undistributed Earnings Allocated to Participating Securities	0	126,000
Net Income (Loss) Available to Common Stockholders, Basic	$ (16,000)	$ 1,130,000
Weighted Average Number of Shares Outstanding, Basic	5,265,750	5,262,740
Earnings Per Share, Basic	$ 0.00	$ 0.21