Redeemable Convertible Preferred Stock - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended	3 Months Ended
	Feb. 28, 2014	Sep. 27, 2014	Jun. 30, 2013
Debt Disclosure [Abstract]
Redeemable convertible preferred stock, shares issued			8,000
Redeemable convertible preferred stock, par value		$ 0.001
Redeemable convertible preferred stock, issued price per share		$ 1,000
Proceeds from issuance of redeemable convertible preferred stock, net of issuance costs		$ 7.6
Dividends accrued on the preferred stock in excess of prime rate, percent		3.00%
Maximum dividends accrued on the preferred stock, percent		4.00%
Redeemable convertible preferred stock converted to common stock	1,700,000