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Deferred Compensation (Tables)
12 Months Ended
Jun. 30, 2017
Compensation Related Costs [Abstract]  
Schedule of investments
 
As of June 30, 2017
 
Amortized Cost
 
Unrealized Gains
 
Unrealized Losses
 
Fair Value
Mutual funds
$
604

 
100

 

 
$
704

   Total marketable securities
$
604

 
100

 

 
$
704


 
As of June 30, 2016
 
Amortized Cost
 
Unrealized Gains
 
Unrealized Losses
 
Fair Value
Mutual funds
$
644

 
40

 

 
$
684

   Total marketable securities
$
644

 
40

 

 
$
684

Available-for-sale marketable securities at fair value on recurring basis
 
 
 
Fair Value Measurements as of June 30, 2017 Using Inputs Considered as
 
Fair Value
 
Level 1
 
Level 2
 
Level 3
Mutual funds
$
704

 
281

 
423

 
$

   Total marketable securities
$
704

 
281

 
423

 
$

 
 
 
Fair Value Measurements as of June 30, 2016 Using Inputs Considered as
 
Fair Value
 
Level 1
 
Level 2
 
Level 3
Mutual funds
$
684

 
425

 
259

 
$

   Total marketable securities
$
684

 
425

 
259

 
$