Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation, Summary of Significant Accounting Policies and Nature of Operations (Details Narrative)

v3.10.0.1
Basis of Presentation, Summary of Significant Accounting Policies and Nature of Operations (Details Narrative)
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2018
USD ($)
Jun. 30, 2018
USD ($)
Mar. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Sep. 30, 2017
USD ($)
Jun. 30, 2017
USD ($)
Mar. 31, 2017
USD ($)
Sep. 30, 2018
USD ($)
Number
Sep. 30, 2017
USD ($)
Dec. 31, 2017
USD ($)
Dec. 31, 2016
USD ($)
State of incorporation               Delaware      
Date of incorporation               Jan. 08, 1992      
Accumulated deficit $ (100,274,600)     $ (87,821,514)       $ (100,274,600)   $ (87,821,514)  
Net loss (4,214,586) $ (3,517,013) $ (4,721,487) (1,988,378) $ (1,733,549) $ (1,637,662) $ (1,745,308) (12,453,086) $ (5,116,519)    
Working capital 24,600,000             24,600,000      
Net cash used in operating activities               (5,298,236) (3,587,628)    
Cash and cash equivalents 25,328,649     $ 4,515,398 $ 4,214,386     25,328,649 $ 4,214,386 4,515,398 $ 3,584,877
FDIC insured limit $ 250,000             250,000      
US Treasury Bills               10,000,000   $ 0  
Cash and cash equivalents except US Treasury Bills               $ 15,300,000      
Technology business segment, description               <p style="margin: 0; text-align: justify"><font style="font: 10pt Times New Roman, Times, Serif">We are focusing our technology development efforts on the metallic fuel with a potential power uprate of up to 10% and an operating cycle extended from 18 to 24 months in existing Westinghouse-type four-loop pressurized water reactors.</font></p>      
Ownership interest                  
Number of operating business segments | Number               2      
Enfission LLC [Member]                      
Ownership interest 50.00%             50.00%