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Summary of Significant Accounting Policies (Details) - USD ($)
3 Months Ended 9 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Mar. 31, 2021
Summary of Significant Accounting Policies (Details) [Line Items]          
Extended Product Warranty Description     The extended warranties sold by the Company provide a level of assurance beyond the coverage for defects that existed at the time of a sale or against certain types of covered damage with coverage terms ranging from 5 to 7 years.    
Extended Product Warranty Accrual $ 402,549   $ 402,549   $ 408,219
Recognition of Deferred Revenue 20,267 $ 22,140 52,249 $ 66,420  
Deferred Revenue and Credits, Current 28,644   28,644   $ 74,920
Revenues 3,171,532 2,672,742 10,914,787 8,948,575  
Payments for Commissions 13,000 3,000 94,000 27,000  
Repairs and Calibration [Member]          
Summary of Significant Accounting Policies (Details) [Line Items]          
Revenues 469,095 273,388 1,389,894 762,828  
Replacement Parts [Member]          
Summary of Significant Accounting Policies (Details) [Line Items]          
Revenues 37,186 59,026 170,430 82,796  
Extended Warranty [Member]          
Summary of Significant Accounting Policies (Details) [Line Items]          
Revenues 20,267 22,140 52,249 66,420  
Other Revenue [Member]          
Summary of Significant Accounting Policies (Details) [Line Items]          
Revenues 20,000 $ 1,335 20,000 58,087  
Customer Concentration Risk [Member] | Customer One [Member] | Revenue Benchmark [Member]          
Summary of Significant Accounting Policies (Details) [Line Items]          
Revenues $ 673,758   $ 3,008,911 $ 681,293  
Concentration Risk, Percentage 21.00% 17.00% 28.00% 25.00%  
Customer Concentration Risk [Member] | Customer Two [Member] | Revenue Benchmark [Member]          
Summary of Significant Accounting Policies (Details) [Line Items]          
Revenues $ 583,680   $ 1,585,620 $ 3,234,035  
Concentration Risk, Percentage 18.00%   15.00% 36.00%  
Customer Concentration Risk [Member] | Customer Three [Member] | Revenue Benchmark [Member]          
Summary of Significant Accounting Policies (Details) [Line Items]          
Revenues $ 328,230   $ 1,368,964    
Concentration Risk, Percentage 10.00%   13.00%    
Customer Concentration Risk [Member] | Customer Four [Member] | Revenue Benchmark [Member]          
Summary of Significant Accounting Policies (Details) [Line Items]          
Revenues     $ 1,244,380    
Concentration Risk, Percentage     11.00%