Annual report pursuant to Section 13 and 15(d)

Basis of Presentation, Significant Accounting Policies and Going Concern - Risk Concentrations (Details)

v3.24.3
Basis of Presentation, Significant Accounting Policies and Going Concern - Risk Concentrations (Details) - USD ($)
$ in Millions
12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Risk Concentrations    
Aggregate balances that exceed insurance coverage $ 1.4  
Revenue from Contract with Customer Benchmark [Member] | Customer Concentration Risk [Member] | RSP Systems    
Risk Concentrations    
Concentration percentage (as a percent)   11.00%
Revenue from Contract with Customer Benchmark [Member] | Customer Concentration Risk [Member] | Cal Microturbine [Member]    
Risk Concentrations    
Concentration percentage (as a percent) 16.00%  
Revenue from Contract with Customer Benchmark [Member] | Customer Concentration Risk [Member] | E-Finity    
Risk Concentrations    
Concentration percentage (as a percent) 13.00% 12.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Capstone Engineered Solutions    
Risk Concentrations    
Concentration percentage (as a percent) 11.00%  
Accounts Receivable [Member] | Customer Concentration Risk [Member] | E-Finity    
Risk Concentrations    
Concentration percentage (as a percent)   12.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Supernova Energy Services    
Risk Concentrations    
Concentration percentage (as a percent) 14.00%