Quarterly report pursuant to Section 13 or 15(d)

Discontinued Operations - Schedule of Disposal Groups, Including Discontinued Operation Balance Sheet (Details)

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Discontinued Operations - Schedule of Disposal Groups, Including Discontinued Operation Balance Sheet (Details) - USD ($)
$ in Thousands
Jun. 30, 2018
Dec. 31, 2017
Discontinued Operations and Disposal Groups [Abstract]    
Other assets $ 94 $ 89
Total current assets 94 89
Property, plant and equipment, net [1] 81 81
Other assets 157 195
Total long-term assets 238 276
Total assets 332 365
Accounts payable 17 8
Accrued expenses and other liabilities 269 265
Environmental liabilities 226 632
Total current liabilities 512 905
Closure liabilities 123 120
Environmental liabilities 672 239
Total long-term liabilities 795 359
Total liabilities $ 1,307 $ 1,264
[1] Net of accumulated depreciation of $10,000 for each period presented.