Preferred Stock - Additional Information (Detail) - USD ($)	3 Months Ended
	Sep. 30, 2015	Jun. 30, 2015
Preferred Stock [Line Items]
Principal amount of senior secured notes	$ 1,220,000	$ 900,000
Series B Preferred Stock [Member]
Preferred Stock [Line Items]
Preferred stock, shares outstanding	28,000
Preferred stock redemption price per share	$ 25.00
Conversion rate of common stock per share	$ 2.80
Conversion of preferred stock and accrued dividends into common stock shares	250,000
Accrued dividend	$ 17,500
Series D Preferred Stock [Member]
Preferred Stock [Line Items]
Preferred stock, shares outstanding	665,000	665,000
Preferred stock redemption price per share	$ 10.00
Conversion rate of common stock per share	$ 1.08571
Conversion of preferred stock and accrued dividends into common stock shares	6,125,024
Accrued dividend	$ 83,100
Accrued dividend rate	5.00%
Preferred stock repurchased period	2 years
Preferred stock conversion period	3 years
Principal amount of senior secured notes	$ 6,500,000