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RISK MANAGEMENT ACTIVITIES AND FAIR VALUE MEASUREMENTS RISK MANAGEMENT ACTIVITIES AND FAIR VALUE MEASUREMENTS - AVAILABLE FOR SALE ASSETS - ADDITIONAL INFORMATION (Tables)
12 Months Ended
Jun. 30, 2019
Investments, Debt and Equity Securities [Abstract]  
Fair Value, Assets Measured on Recurring Basis [Table Text Block]
The following table sets forth the Company's financial assets as of June 30, 2019 and 2018 that were measured at fair value on a recurring basis during the period:
 
Fair Value Asset
As of June 30
2019
 
2018
Investments:
 
 
 
U.S. government securities
$
3,648

 
$
5,544

Corporate bond securities
2,400

 
3,737

Other investments
169

 
141

TOTAL
$
6,217

 
$
9,422