XML 90 R70.htm IDEA: XBRL DOCUMENT v3.10.0.1
Commitments and Contingencies (Details Textual) - USD ($)
1 Months Ended 9 Months Ended 12 Months Ended
Apr. 02, 2018
Jun. 30, 2017
Nov. 30, 2014
Sep. 30, 2018
Sep. 30, 2017
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Feb. 01, 2017
Dec. 31, 2013
Commitments and Contingencies (Textual)                    
Rent expense       $ 95,000 $ 95,000 $ 132,000 $ 138,000      
Maturity date Jul. 31, 2019                  
CNG purchase       $ 545,000   $ 545,000        
Operating lease, description       Titan entered into an operating lease agreement which expires in February 2019, with an option to extend to February 2024. In November 2014, the lease was amended to add El Toro as a co-lessee. The monthly payments range from $10,000 to $11,604. The lease calls for rent increases over the term of the lease. The Company records rent expense on a straight-line basis using average rent for the term of the lease.            
Lease contract term, description           The property for the EAF Fort Worth station from a third-party under a lease agreement with an initial 10-year term expiring December 2023.        
Percentage of note bears interest                 12.50%  
Monthly rental payments range, description       Thunder Ridge leases equipment and vehicles under monthly and non-cancelable operating leases. Payments on these leases range between $50 and $3,000 and mature between 2018 and August 2023.            
Total lease expense       $ 739,000            
Evo Inc [Member]                    
Commitments and Contingencies (Textual)                    
Lease contract term, description           The terms of oral leases for one-time payments of $1.00.        
Percentage of note bears interest                 70.00%  
Jurupa Valley [Member]                    
Commitments and Contingencies (Textual)                    
Lease contract term, description           The terms of a month-to-month oral lease for a one-time payment of $1.00.        
Promissory Note [Member]                    
Commitments and Contingencies (Textual)                    
Amount of lease property           $ 4,000,000        
Senior Promissory Note [Member]                    
Commitments and Contingencies (Textual)                    
Amount of lease property           $ 3,800,000        
El Toro [Member]                    
Commitments and Contingencies (Textual)                    
Monthly rental payments range, description     The monthly payments range from $10,000 to $11,604.              
Minnesota [Member]                    
Commitments and Contingencies (Textual)                    
Monthly rental payments   $ 977                
SCAQMD [Member]                    
Commitments and Contingencies (Textual)                    
Grant amount                   $ 150,000
Maturity date               Aug. 31, 2020    
Amount of lease property               $ 1    
Operating lease, description               Within 180 days from the contract execution, Diamond Bar, using its best efforts, shall sell any surplus assets and provide SCAQMD with 90% of the net proceeds, as defined. To date Diamond Bar has not had any surplus assets to sell.    
Lease contract term, description               The contract ends December 31, 2020. SCAQMD can extend the contract for a period not to exceed five years starting January 1, 2021 at no additional cost. Either party may terminate the contract with sixty days' notice.    
Texas Commission [Member]                    
Commitments and Contingencies (Textual)                    
Grant amount             $ 400,000      
California Energy Commission [Member]                    
Commitments and Contingencies (Textual)                    
Grant amount                   $ 300,000