Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details)

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Commitments and Contingencies (Details)
1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Apr. 30, 2017
Mar. 31, 2017
USD ($)
Sep. 30, 2018
USD ($)
Sep. 30, 2017
USD ($)
Dec. 31, 2016
ft²
Apr. 01, 2017
ft²
Commitments and Contingencies (Textual)            
Area of lease property | ft²         32,649 4,960
Operating leases monthly rent expense   $ 15,000        
Extension of lease expiration date         Mar. 31, 2017  
Lease agreement, Description     Annual escalations on April 1, 2018 to $10,473 per month and on April 1, 2019 to $10,787 per month for the Research Drive property.      
Letter of credit, Description We and Dresser-Rand agreed to modify the requirements for our existing backstop security. As modified, we were required to maintain a $500,000 backstop security, reduced from $2.1 million, the monthly fee reduced to 1% of the amount of the amended Letter or Credit and the backstop security was extended from June 2017 to March 31, 2018.          
Rent expense under the leases     $ 37,000 $ 104,000    
January through March 2017 [Member]            
Commitments and Contingencies (Textual)            
Rent expense net of sublease income     10,168      
Operating leases monthly rent expense     $ 15,000      
Standby Letter of Credit [Member]            
Commitments and Contingencies (Textual)            
Lease expiration date     Jun. 30, 2017      
Lease agreement, Description     (a) replacement of the Letter of Credit with an alternative Backstop Security in favor of Dresser-Rand, (b) Dresser-Rand eliminating the Backstop Security requirement under the CLA, or (c) the last day of the twenty-fourth calendar month following the commencement of the Term. In consideration of the investor's support commitment, the Company paid the investor a one-time fee equal to 4% of the amount of the Letter of Credit and was obligated to pay a monthly fee equal to 1% of the amount of the Letter of Credit for the first twelve months with an additional one-time fee equal to 4% of the amount of the Letter of Credit at the one year anniversary, and a monthly fee equal to 2% for an additional twelve months.      
Secured performance fees     $ 2,100,000      
Line of credit     $ 2,100,000