Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Significant Accounting Policies - Company Response to COVID-19 (Details)

v3.21.2
Basis of Presentation and Significant Accounting Policies - Company Response to COVID-19 (Details)
1 Months Ended 6 Months Ended
Sep. 28, 2020
Jun. 01, 2020
employee
May 23, 2020
company
employee
MW
May 13, 2020
USD ($)
Apr. 24, 2020
USD ($)
Jun. 30, 2021
USD ($)
Sep. 30, 2021
USD ($)
Debt Instrument [Line Items]              
Business Continuity Plan, Number of Employees Furloughed | employee     52        
Business Continuity Plan, Threshold Furloughed Period     45 days        
Percentage of Salary Cut Volunteered by Leadership Team     25.00%        
Number of Other Top Company Mangers Volunteered for Salary Cut | company     25        
Percentage of Salary Cut Volunteered by Several Employees     15.00%        
Percentage of Salary Cut Volunteered by Other Top Managers     15.00%        
Percentage of Temporary Reduction in Base Cash Retainer     25.00%        
Number of Employees Eliminated | employee   26          
Capacity of Pre Built Microturbine Finished Goods | MW     5.9        
Percentage of salary after business continuity plan 100.00%            
Debt instrument, issuance date         Apr. 24, 2020    
Loans Payable | Paycheck Protection Program, CARES Act              
Debt Instrument [Line Items]              
Loan amount         $ 2,610,200    
Debt instrument, issuance date         Apr. 24, 2020    
Loans repaid       $ 660,200      
Previously repaid debt           $ 660,200 $ 660,200