Quarterly report pursuant to Section 13 or 15(d)

Customer Concentrations and Accounts Receivable - Customer Concentrations (Details)

v3.20.2
Customer Concentrations and Accounts Receivable - Customer Concentrations (Details)
3 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Revenue from Contract with Customer, Product and Service Benchmark [Member] | Customer Concentration Risk | Optimal Group Australia Pty Ltd    
Customer Concentrations and Accounts Receivable    
Concentration percentage (as a percent) 12.00%  
Revenue from Contract with Customer, Product and Service Benchmark [Member] | Customer Concentration Risk | E-Finity    
Customer Concentrations and Accounts Receivable    
Concentration percentage (as a percent)   12.00%
Revenue from Contract with Customer, Product and Service Benchmark [Member] | Customer Concentration Risk | DTC    
Customer Concentrations and Accounts Receivable    
Concentration percentage (as a percent)   10.00%
Accounts Receivable | Credit Concentration Risk | E-Finity    
Customer Concentrations and Accounts Receivable    
Concentration percentage (as a percent) 13.00% 11.00%
Accounts Receivable | Credit Concentration Risk | Reliable Secure Power Systems    
Customer Concentrations and Accounts Receivable    
Concentration percentage (as a percent)   12.00%