Preferred Stock (Details) (Convertible Preferred Stock [Member], USD $)	1 Months Ended	6 Months Ended	9 Months Ended
	Jun. 30, 2011	Oct. 31, 2012	Jan. 31, 2013
Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Stock issued during period, shares, new issues	1,666,667
Stock issued during period, per share, new issues	$ 2.40
Stock issued during period, value, new issues	$ 4,000,000
Average price of common stock to induce conversion		$ 4.00
Preferred stock conversion date		Jun. 30, 2013
Period used to calculate average price of common stock to induce conversion		30 days
Convertible preferred stock, shares of common stock issued upon conversion		1
Preferred stock annual dividend rate, percentage		10.00%
Dividends, preferred stock			66,000
Preferred stock cash dividend paid			$ 0.04
Dividends payable			$ 236,000