XML 46 R35.htm IDEA: XBRL DOCUMENT v3.20.2
Inventories, net (Details) - Schedule of Inventory, Current - USD ($)
Sep. 30, 2020
Mar. 31, 2020
Schedule of Inventory, Current [Abstract]    
Purchased parts $ 2,744,088 $ 3,011,072
Work-in-process 858,774 597,166
Finished goods 16,035 34,441
Less: Allowance for obsolete inventory (570,000) (550,000)
Inventory, net $ 3,048,897 $ 3,092,679