Annual report pursuant to Section 13 and 15(d)

Other Current Assets - Schedule of Other Current Assets (Details)

v3.20.1
Other Current Assets - Schedule of Other Current Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]    
Notes receivables, promissory note $ 885
Prepaid insurance 625 1,398
Prepaid city and state taxes 1,858 2,318
Prepaid contract costs for work in process 84
Prepaid operating expenses 626 2,483
Other current assets $ 3,994 $ 6,283