Quarterly report pursuant to Section 13 or 15(d)

Revolving Line of Credit (Narrative) (Details)

v3.8.0.1
Revolving Line of Credit (Narrative) (Details) - BMO Harris Bank (The Credit Agreement) [Member]
$ in Millions
3 Months Ended
Dec. 31, 2017
USD ($)
Line of Credit Facility [Line Items]  
Line of credit facility, expiration date Dec. 29, 2017
Line of credit facility, amount outstanding $ 0.0