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Debt (Tables)
 12 Months Ended
May 31, 2016
Debt Disclosure [Abstract]  
Schedule of debt
The following table summarizes debt as of May 31: 
 
Carrying
Value
 
Fair
Value
 
Carrying
Value
 
Fair
Value
 
2016
 
2015
Loan Agreement:
 

 
 

 
 

 
 

Revolving Loan (interest rate of n/a and n/a, respectively)
$
—

 
$
—

 
$
—

 
$
—

Unsecured Lines of Credit (weighted average interest rates of 4.4% and 3.8%, respectively)
$
6.3

 
$
6.3

 
$
6.0

 
$
6.0

Total debt
$
6.3


$
6.3


$
6.0


$
6.0

Less lines of credit and current portion of long-term debt
(6.3
)
 
(6.3
)
 
(6.0
)
 
(6.0
)
Total long-term debt
$
—


$
—


$
—


$
—
Schedule of maturities of long-term debt
The following table sets forth the maturities of the carrying values of the Company’s debt obligations as of May 31, 2016 for the fiscal years ending May 31: 
2017
$
6.3

2018
—

2019
—

2020
—

2021
—

Thereafter
—

Total debt
$
6.3