XML 52 R41.htm IDEA: XBRL DOCUMENT v3.8.0.1
Debt: Line of Credit (Details) - Line of Credit
$ in Millions
Mar. 31, 2018
USD ($)
Line of Credit  
Borrowings outstanding $ 24.6
Line of credit available for additional borrowings $ 25.4
Minimum  
Line of Credit  
Interest rate (as a percent) 3.72%
Maximum  
Line of Credit  
Interest rate (as a percent) 4.75%