Discontinued Operations	9 Months Ended
Sep. 30, 2017
Discontinued Operations and Disposal Groups [Abstract]
Discontinued Operations	Discontinued Operations Effective June 28, 2017, the Company has suspended all operations associated with the Fuel Conversion business segment. The components of the net assets of the Fuel Conversion discontinued operations as of September 30, 2017 are Assets held for sale on the Consolidated Balance Sheets totaling $1,839 which consists of certain equipment of $485 and the Carbonite intangible asset of $1,354. The components of the net assets of the Fuel Conversion discontinued operations as of December 31, 2016 are Assets held for sale on the Consolidated Balance Sheets totaling $2,058 which consists of certain equipment of $402 and the Carbonite intangible asset of $1,656. The resulting amount in assets held for sale was determined using management's assumptions based on a plan of sale and we may not be able to realize as much value from the sale of the assets as we expect. In addition, accrued severance of $243 is included in the other accrued liabilities line of the Consolidated Balance Sheets as of September 30, 2017. The Fuel Conversion business segment had no other assets or liabilities associated with it. The Condensed Statement of Operations of the Fuel Conversion discontinued operations consisted of Research and Development for the three- and nine-month periods ended September 30, 2017 of $239 and $2,238, respectively, and for the same periods in 2016 of $630 and $2,144, respectively. The loss from discontinued operations in the Condensed Statement of Operations for the nine-month periods ended September 30, 2017 include the severance charges associated with suspension of the Fuel Conversion business segment of $396. The Fuel Conversion business segment had no revenues associated with it. The Company expects to incur $580,000 of severance costs relating to the suspension of the Fuel Conversion business segment, of which $200,000 will be paid in 2017 ($170,000 was paid for the three-months ended September 30, 2017 and $30,000 is expected to be paid for the three-months ending December 31, 2017), $320,000 will be paid in 2018 and $60,000 will be paid in 2019. The Company expects to incur storage fees and other disposal costs associated with certain property, plant and equipment and contractual termination payments or other miscellaneous expenses but an estimated amount or range of amounts has not yet been determined.

Discontinued Operations

Effective June 28, 2017, the Company has suspended all operations associated with the Fuel Conversion business segment. The components of the net assets of the Fuel Conversion discontinued operations as of September 30, 2017 are Assets held for sale on the Consolidated Balance Sheets totaling $1,839 which consists of certain equipment of $485 and the Carbonite intangible asset of $1,354. The components of the net assets of the Fuel Conversion discontinued operations as of December 31, 2016 are Assets held for sale on the Consolidated Balance Sheets totaling $2,058 which consists of certain equipment of $402 and the Carbonite intangible asset of $1,656. The resulting amount in assets held for sale was determined using management's assumptions based on a plan of sale and we may not be able to realize as much value from the sale of the assets as we expect. In addition, accrued severance of $243 is included in the other accrued liabilities line of the Consolidated Balance Sheets as of September 30, 2017. The Fuel Conversion business segment had no other assets or liabilities associated with it.

The Condensed Statement of Operations of the Fuel Conversion discontinued operations consisted of Research and Development for the three- and nine-month periods ended September 30, 2017 of $239 and $2,238, respectively, and for the same periods in 2016 of $630 and $2,144, respectively. The loss from discontinued operations in the Condensed Statement of Operations for the nine-month periods ended September 30, 2017 include the severance charges associated with suspension of the Fuel Conversion business segment of $396. The Fuel Conversion business segment had no revenues associated with it.

The Company expects to incur $580,000 of severance costs relating to the suspension of the Fuel Conversion business segment, of which $200,000 will be paid in 2017 ($170,000 was paid for the three-months ended September 30, 2017 and $30,000 is expected to be paid for the three-months ending December 31, 2017), $320,000 will be paid in 2018 and $60,000 will be paid in 2019. The Company expects to incur storage fees and other disposal costs associated with certain property, plant and equipment and contractual termination payments or other miscellaneous expenses but an estimated amount or range of amounts has not yet been determined.