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INVESTMENTS (Details) - Summary of Gross Unrealized Losses and Fiar Value of Available-for-Sale Investments - USD ($)
$ in Thousands
Sep. 30, 2015
Jun. 30, 2015
Available-for-sale securities    
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value $ 805 $ 1,219
Available-for-sale securities, continuous unrealized loss position, less than 12 months, gross unrealized loss (158) (941)
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, fair value 752 285
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, gross unrealized loss (837) (33)
Available-for-sale securities, continuous unrealized loss position, fair value, total 1,557 1,504
Available-for-sale securities, continuous unrealized loss position, gross unrealized losses, total (995) (974)
Common Stock - Domestic [Member]    
Available-for-sale securities    
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value 0 77
Available-for-sale securities, continuous unrealized loss position, less than 12 months, gross unrealized loss 0 (7)
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, fair value 98 107
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, gross unrealized loss (11) (2)
Available-for-sale securities, continuous unrealized loss position, fair value, total 98 184
Available-for-sale securities, continuous unrealized loss position, gross unrealized losses, total (11) (9)
Common Stock - International [Member]    
Available-for-sale securities    
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value 154 114
Available-for-sale securities, continuous unrealized loss position, less than 12 months, gross unrealized loss (25) (23)
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, fair value 89 39
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, gross unrealized loss (57) (16)
Available-for-sale securities, continuous unrealized loss position, fair value, total 243 153
Available-for-sale securities, continuous unrealized loss position, gross unrealized losses, total (82) (39)
Corporate Debt Securities [Member]    
Available-for-sale securities    
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value 0 386
Available-for-sale securities, continuous unrealized loss position, less than 12 months, gross unrealized loss 0 (817)
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, fair value 431 0
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, gross unrealized loss (750) 0
Available-for-sale securities, continuous unrealized loss position, fair value, total 431 386
Available-for-sale securities, continuous unrealized loss position, gross unrealized losses, total (750) (817)
Fixed Income Securities [Member]    
Available-for-sale securities    
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value 63 67
Available-for-sale securities, continuous unrealized loss position, less than 12 months, gross unrealized loss (13) (7)
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, fair value 134 139
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, gross unrealized loss (19) (15)
Available-for-sale securities, continuous unrealized loss position, fair value, total 197 206
Available-for-sale securities, continuous unrealized loss position, gross unrealized losses, total (32) (22)
Mutual Funds, Domestic Equity [Member]    
Available-for-sale securities    
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value 433 463
Available-for-sale securities, continuous unrealized loss position, less than 12 months, gross unrealized loss (110) (80)
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, fair value 0 0
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, gross unrealized loss 0 0
Available-for-sale securities, continuous unrealized loss position, fair value, total 433 463
Available-for-sale securities, continuous unrealized loss position, gross unrealized losses, total (110) (80)
Other Securities [Member]    
Available-for-sale securities    
Available-for-sale securities, continuous unrealized loss position, less than 12 months, fair value 155 112
Available-for-sale securities, continuous unrealized loss position, less than 12 months, gross unrealized loss (10) (7)
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, fair value 0 0
Available-for-sale securities, continuous unrealized loss position, 12 months or greater, gross unrealized loss 0 0
Available-for-sale securities, continuous unrealized loss position, fair value, total 155 112
Available-for-sale securities, continuous unrealized loss position, gross unrealized losses, total $ (10) $ (7)