Quarterly report pursuant to Section 13 or 15(d)

Note 11 - Equity (Details Textual)

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Note 11 - Equity (Details Textual) - USD ($)
 1 Months Ended 3 Months Ended 12 Months Ended
Feb. 29, 2020
Jan. 31, 2020
Dec. 31, 2019
Jun. 30, 2020
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Stock Issued During Period, Shares, New Issues (in shares)     2,100,000        
Proceeds from Issuance of Common Stock   $ 812,000 $ 1,900,000   $ 850,000 $ 50,300 $ 1,100,000
Common Stock, Share Subscribed but Unissued, Subscriptions Receivable       $ 912,500  
Stock Issued During Period, Shares, Issued for Employee Bonuses (in shares)         53,315    
Stock Issued During Period, Value, Issued for Employee Bonuses         $ 64,511    
Common Stock Subscription [Member]              
Stock Issued During Period, Shares, New Issues (in shares)            
Common Stock, Share Subscribed but Unissued, Subscriptions Receivable         $ 913,000    
Stock Issued During Period, Shares, Issued for Employee Bonuses (in shares)            
Stock Issued During Period, Value, Issued for Employee Bonuses            
Common Stock Subscriptions Receivable [Member]              
Common Stock, Share Subscribed but Unissued, Subscriptions Receivable         913,000    
Stock Issued During Period, Value, Issued for Employee Bonuses            
Investor [Member]              
Stock Issued During Period, Shares, New Issues (in shares) 4,000,000            
Proceeds from Issuance of Common Stock $ 3,400,000       850,000    
Investor [Member] | Forecast [Member]              
Proceeds from Issuance of Common Stock       $ 1,700,000      
Prepaid Expenses and Other Current Assets [Member]              
Common Stock, Share Subscribed but Unissued, Subscriptions Receivable     812,000       812,000
Accounts and Other Receivables [Member]              
Common Stock, Share Subscribed but Unissued, Subscriptions Receivable     $ 812,000   $ 1,700,000   $ 812,000