DEBT (Details) (USD $) In Thousands, unless otherwise specified			12 Months Ended					12 Months Ended								12 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2011 Revolving Loan Agreement [Member]	Jun. 30, 2012 Revolving Loan Agreement [Member]	Mar. 31, 2011 Revolving Loan Agreement [Member]	Jun. 30, 2011 Revolving Loan Agreement [Member] Maximum [Member]	Jun. 30, 2011 Revolving Loan Agreement [Member] Minimum [Member]	Jun. 30, 2011 10-year Unsecured Senior Notes [Member]	Jun. 30, 2012 10-year Unsecured Senior Notes [Member]	Jun. 30, 2012 Secured Long-term Debt [Member]	Jun. 30, 2011 Secured Long-term Debt [Member]	Jun. 30, 2012 Capital Lease Obligations [Member]	Jun. 30, 2011 Capital Lease Obligations [Member]	Jun. 30, 2012 Other Long-Term Debt [Member]	Jun. 30, 2011 Other Long-Term Debt [Member]	Jun. 30, 2012 Senior Notes [Member]	Jun. 30, 2011 Senior Notes [Member]	Jun. 30, 2010 Senior Notes [Member]	Apr. 10, 2006 Senior Notes [Member]	Jun. 30, 2012 Line of Credit [Member]	Jun. 30, 2011 Line of Credit [Member]
Line of Credit Facility [Line Items]
Available credit lines																				$ 3,495	$ 2,733
Unused credit lines																				3,495	2,733
Outstanding credit lines																				0	0
Notes payable-other	0	0
Total notes payable	0	0
Weighted-average interest rates on credit lines (in hundredths)																				2.90%	4.50%
Debt Instrument [Line Items]
Subtotal	32,145	29,699	11,300	17,550				17,857	14,286	66	84	7	19	236	439
Less: current maturities	(3,744)	(3,915)
Total long-term debt	28,401	25,784
Maturity period of unsecured senior notes (in years)								10 years
Borrowing capacity after amendment			40,000		35,000
Expiration date			May 31, 2015
Reference rate used to calculate interest rate			LIBOR
Basis spread on variable rate (in hundredths)						2.50%	1.50%
Total funded debt to EBITDA (in hundredths)			2.09%	1.74%
Number of recent quarters considered for minimum EBITDA			4
Effective date of Note Agreement																	Apr. 10, 2006
Debt instrument, face value																			25,000
Interest rate on senior notes (in hundredths)																6.05%	6.05%
Maturity date of note agreement																Apr. 10, 2016	Apr. 10, 2016
Periodic payment of interest and principal																	3,571,429
Date of first required payment																		Apr. 10, 2010
Minimum amount attributable to covenants not covered																	1,000
Maturities of long-term debt [Abstract]
2013	3,744
2014	3,682
2015	21,121
2016	3,571
2017	0
Thereafter	27
Long-term debt, total	$ 32,145	$ 29,699	$ 11,300	$ 17,550				$ 17,857	$ 14,286	$ 66	$ 84	$ 7	$ 19	$ 236	$ 439