Stock Options (Detail) (USD $)	3 Months Ended
	Sep. 30, 2013 Employee 2012 Stock Option Plan [Member]	Sep. 30, 2013 NonEmployee 2012 Stock Option Plan [Member]	Sep. 30, 2013 Employee Stock Option Plan 2002 [Member]	Sep. 30, 2012 Employee Stock Option Plan 2002 [Member]	Sep. 30, 2013 2000 Non Employee Stock Options	Sep. 30, 2012 2000 Non Employee Stock Options	Jun. 30, 2012 2000 Non Employee Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, beginning of period			651,140	1,380,140	30,000		30,000
Granted	35,000	25,000
Terminated/Lapsed			30,240		30,000
Exercised			326,800	27,000
Outstanding, end of period	35,000	25,000	294,100	1,353,140		30,000
Exercisable, end of period	7,000	5,000	294,100	1,353,140		30,000
Weighted average fair value at grant date of options granted	$ 3.28
Total intrinsic value of options exercised			$ 854,000	$ 36,000
Total intrinsic value of options outstanding	11,000	11,000	101,000	1,459,000
Total intrinsic value of options exercisable	$ 2,000	$ 2,000	$ 101,000	$ 1,459,000
Outstanding, beginning of period, weighted average exercise price			$ 4.18	$ 2.95	$ 5.03	$ 5.03	$ 5.03
Terminated/lapsed, weighted average exercise price			$ 1.74		$ 5.03
Granted, weighted average exercise price	$ 5.02	$ 4.88
Exercised, weighted average exercise price			$ 2.70	$ 1.76
Outstanding, end of period, weighted average exercise price	$ 5.02	$ 4.88	$ 6.07	$ 2.95		$ 5.03	$ 5.03
Exercisable, end of period, weighted average exercise price	$ 5.02	$ 4.88	$ 6.07	$ 2.95		$ 5.03