NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2010
Gross billings									$ 501,597	$ 522,880	$ 515,497
Less worksite employee costs									440,706	458,545	454,803
Net revenue	$ 14,836	$ 15,795	$ 14,222	$ 16,038	$ 15,860	$ 15,571	$ 16,088	$ 16,816	$ 60,891	$ 64,335	$ 60,694