Shareholders' Equity - Activity of Company's Share Options (Detail) (USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Schedule Of Stock Option Activity [Line Items]
Number of Shares, Options outstanding, Beginning balance	400,499	174,249	393,624
Number of Shares, Granted	260,000	250,000	0
Number of Shares, Exercised	0	0	(40,500)
Number of Shares, Forfeited	(43,000)	(23,750)	(178,875)
Number of Shares, Options outstanding, Ending balance	617,499	400,499	174,249
Options Outstanding, Weighted Average Exercise Price, Beginning Balance	$ 2.62	$ 5.80	$ 5.19
Exercisable, Number of Shares, Options outstanding, Ending balance	404,163	220,498	168,909
Weighted Average Exercise Price, Granted	$ 1.22	$ 1.97	$ 0.00
Weighted Average Exercise Price, Exercised	$ 0.00	$ 0.00	$ 1.59
Weighted Average Exercise Price, Forfeited	$ 2.13	$ 2.67	$ 5.41
Options Outstanding, Weighted Average Exercise Price, Ending Balance	$ 1.92	$ 2.62	$ 5.80
Exercisable, Weighted Average Exercise Price, Ending balance	$ 3.18	$ 4.75	$ 5.91
Range of Exercise Prices, Granted	$ 1.22		$ 0.00
Range of Exercise Prices, Exercised	$ 0.00	$ 0.00
Minimum [Member]
Schedule Of Stock Option Activity [Line Items]
Outstanding Options, Range of Exercise Prices, Beginning balance	$ 1.67	$ 2.50	$ 1.50
Range of Exercise Prices, Granted		$ 1.67
Range of Exercise Prices, Exercised			$ 1.50
Range of Exercise Prices, Forfeited	$ 2.09	$ 2.50	$ 2.50
Outstanding Options, Range of Exercise Prices, Ending balance	$ 1.22	$ 1.67	$ 2.50
Exercisable, Range of Exercise Prices, Ending balance	$ 0.00	$ 1.67	$ 2.50
Maximum [Member]
Schedule Of Stock Option Activity [Line Items]
Outstanding Options, Range of Exercise Prices, Beginning balance	$ 9.63	$ 9.63	$ 10.24
Range of Exercise Prices, Granted		$ 2.09
Range of Exercise Prices, Exercised			$ 2.65
Range of Exercise Prices, Forfeited	$ 2.65	$ 3.00	$ 5.86
Outstanding Options, Range of Exercise Prices, Ending balance	$ 9.63	$ 9.63	$ 9.63
Exercisable, Range of Exercise Prices, Ending balance	$ 0.00	$ 9.63	$ 9.63