Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Schedule of Concentration of Credit Risk (Details)

v3.20.1
Summary of Significant Accounting Policies - Schedule of Concentration of Credit Risk (Details)
3 Months Ended 12 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Clarios (successor of Johnson Controls Battery Group, Inc.) | Revenue      
Concentration risk 100.00% 60.00%  
Clarios (successor of Johnson Controls Battery Group, Inc.) | Trade Accounts Receivable      
Concentration risk 0.00%   100.00%
P. Kay Metals | Revenue      
Concentration risk 0.00% 37.00%  
P. Kay Metals | Trade Accounts Receivable      
Concentration risk 0.00%   0.00%