Annual report pursuant to Section 13 and 15(d)

Permit and Other Intangible Assets (Details Narrative)

v3.8.0.1
Permit and Other Intangible Assets (Details Narrative) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Goodwill and Intangible Assets Disclosure [Abstract]    
Amortization expense of intangible asset $ 374 $ 448