Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details Textual)

v3.7.0.1
Commitments and Contingencies (Details Textual)
$ in Millions
3 Months Ended
Mar. 31, 2017
USD ($)
Operating Leases, Rent Expense $ 0.9
Surety Bond [Member]  
Long-term Debt 123.1
Energy Contracts [Member]  
Other Commitment, Due in Next Twelve Months 0.3
Other Commitment, Due in Second Year $ 0.2