DESCRIPTION OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 4) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Inventories
Raw materials	$ 42,464	$ 50,498
Work-in-process	1,508	1,713
Finished goods	24,435	22,855
Total	68,407	75,066
Period of estimate of excess and obsolete inventory which requires estimating the future demand for production	1 year
Inventory write-downs	6,130	5,902	3,623
Restricted long-term investments
Restricted long-term investments	$ 14,786	$ 12,171
Minimum
Accounts and notes receivable and allowances for doubtful accounts
Credit term	30 days
Maximum
Accounts and notes receivable and allowances for doubtful accounts
Credit term	120 days
Extended credit term, maximum	3 years