Preferred Stock and Redeemable Preferred Stock - Additional Information (Detail) (USD $)	1 Months Ended				12 Months Ended
	Mar. 09, 2012 Month	Oct. 12, 2010 Month	Mar. 10, 2010 Year	Sep. 23, 2009 Year	Jun. 30, 2012	Aug. 31, 2010
Preferred Stock [Line Items]
Preferred stock par value per share					$ 0.10
Extended maturity period					12 months
Convertible redeemable preferred stock maturity					2013-04-12
Preferred stock redemption period					12 months
Preferred stock accrued dividend					$ 536,000
Warrants Exercisable period		54	5	5
Exercise price of warrants			$ 2.50	$ 2.40		$ 1.40
Value of warrants using Black-Scholes option					1,031,000
Series C 15% Convertible Redeemable Preferred Stock [Member]
Preferred Stock [Line Items]
Preferred stock par value per share					$ 1.60
Company issued redeemable preferred stock					1,250,000
Convertible redeemable preferred stock dividend					15.00%
Dividend rate increased per annum					20.00%
Preferred stock conversion initial price					$ 0.80
Preferred stock redemption period					30 months
Preferred stock redemption percentage					102.50%
Company issued warrants to purchase common stock					825,000
Warrants Exercisable period
Exercise price of warrants					$ 1.60
Percentage of closing bidding price of common stock					101.00%
Redeemable Convertible Preferred Stock [Member]
Preferred Stock [Line Items]
Conversion to common stock from preferred stock					2,500,000
Series B Preferred Stock [Member]
Preferred Stock [Line Items]
Conversion to common stock from preferred stock					250,000
Preferred Stock Shares Outstanding					28,000
Redemption price of preferred stock per share					$ 25.00
Conversion Rate of common Stock Per Share					$ 2.80
Accrued dividends					$ 17,500