Stock Option Plan, Stock-Based Compensation - Additional Information (Detail) (USD $)	12 Months Ended				1 Months Ended		1 Months Ended		12 Months Ended	1 Months Ended		1 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011	May 31, 2007 2007 Equity Incentive Plan	Jun. 30, 2014 2007 Equity Incentive Plan	May 31, 2007 2007 Equity Incentive Plan Minimum	May 31, 2007 2007 Equity Incentive Plan Maximum	Jun. 30, 2014 2007 Equity Incentive Plan Restricted Stock	Nov. 30, 2010 2010 Incentive Plan	Jun. 30, 2014 2010 Incentive Plan	Nov. 30, 2010 2010 Incentive Plan Minimum	Nov. 30, 2010 2010 Incentive Plan Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options originally available	6,000,000				2,000,000	2,000,000				4,000,000	4,000,000
Options expiration period					10 years					10 years
Stock options vesting period							1 year	5 years				1 year	5 years
Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Aggregate Fair Value	$ 240,000	$ 500,000	$ 158,000
Stock options outstanding	2,657,348	2,413,525	2,493,125	2,233,475		1,699,073					958,275
Stock-based compensation expense related to employee or director stock options	272,000	222,000	294,000
Compensation cost related to non-vested awards to be expensed	$ 600,000
Compensation cost related to non-vested awards to be expensed, recognition period	4 years
Restricted stock issued									10,000
Restricted stock issued, weighted average fair value									$ 0.58
Stock options outstanding average exercise price	$ 0.83	$ 0.95	$ 1.32	$ 1.36