Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details Textual)

v3.10.0.1
Commitments and Contingencies (Details Textual)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2018
USD ($)
Jun. 30, 2018
USD ($)
Operating Leases, Rent Expense $ 1.1 $ 2.2
Surety Bond [Member]    
Long-term Debt $ 108.4 $ 108.4