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Revenue Recognition (Details Narrative) - USD ($)
9 Months Ended
Nov. 30, 2019
Feb. 28, 2019
Contracts in process inventory $ 706,582
Letters of Credit    
Letters of credit issued $ 659,000  
Letters of credit, collateral description The Company was utilizing $659,000 of its revolving credit line to collateralize letters of credit issued to customers that have remitted cash deposits on existing orders.  
Revenue Recognition    
Cash deposits received $ 1,954,000  
Contracts in process inventory $ 707,000