Annual report pursuant to Section 13 and 15(d)

Permit and Other Intangible Assets - Schedule of Finite-Lived Intangible Assets, Future Amortization Expense (Details)

v3.19.1
Permit and Other Intangible Assets - Schedule of Finite-Lived Intangible Assets, Future Amortization Expense (Details) - Intangible Assets [Member]
$ in Thousands
Dec. 31, 2018
USD ($)
2019 $ 255
2020 219
2021 198
2022 172
2023 $ 132