Annual report pursuant to Section 13 and 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
Dec. 31, 2017
Dec. 31, 2016
Discontinued Operations and Disposal Groups [Abstract]    
Other assets $ 89 $ 85
Total current assets 89 85
Property, plant and equipment, net [1] 81 81
Other assets 195 268
Total long-term assets 276 349
Total assets 365 434
Accounts payable 8 13
Accrued expenses and other liabilities 265 268
Environmental liabilities 632 677
Total current liabilities 905 958
Closure liabilities 120 113
Environmental liabilities 239 248
Total long-term liabilities 359 361
Total liabilities $ 1,264 $ 1,319
[1] net of accumulated depreciation of $10,000 for each period presented.