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Subsequent Events - Additional Information (Detail) - USD ($)
3 Months Ended
Aug. 03, 2020
Jul. 06, 2020
Jul. 01, 2020
Jun. 30, 2020
ATM Facility [Member]        
Subsequent Event [Line Items]        
Stock issued during period       179,828
Weighted average sale price of shares sold       $ 3.87
Net proceeds from shares sold       $ 674,600
Subsequent Event [Member] | ATM Facility [Member]        
Subsequent Event [Line Items]        
Stock issued during period     318,761  
Weighted average sale price of shares sold     $ 3.90  
Net proceeds from shares sold     $ 1,205,500  
Remaining capacity     $ 13,100,000  
Subsequent Event [Member] | Chicago Venture Partners [Member]        
Subsequent Event [Line Items]        
Outstanding balance of Note to be redeemed $ 300,000 $ 400,000    
Shares issued for the redemption of Note 88,438 120,666