Quarterly report pursuant to Section 13 or 15(d)

Note 15 - Supplemental Disclosure for Statements of Cash Flows (Details Textual)

v3.20.2
Note 15 - Supplemental Disclosure for Statements of Cash Flows (Details Textual) - USD ($)
 1 Months Ended 3 Months Ended 6 Months Ended
May 31, 2020
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Interest Paid, Excluding Capitalized Interest, Operating Activities       $ 5,000 $ 6,000
Stock Issued During Period, Shares, Employee Benefit Plan (in shares)       94,159  
Stock Issued During Period, Value, Employee Benefit Plan   $ 39,834 $ 19,588 $ 172,000  
Stock Issued During Period, Shares, Issued for Employee Bonuses (in shares)       32,651 8,128
Issuance of Stock to Defined Contribution Plan for Employer Matching Contribution       $ 39,834 $ 19,588
Conversion from Series C Preferred Stock To Common Stock [Member]          
Conversion of Stock, Shares Converted (in shares)   70,000   70,000  
Conversion of Stock, Shares Issued (in shares)   410,765   410,765  
Series C Preferred Stock [Member]          
Preferred Stock, Deemed Dividend   $ 78,000   $ 78,000  
Series OO Warrants [Member]          
Class of Warrant or Right, Exercised During Period (in shares) 411,000       411,000
Issued Stock Upon Exercise of Warrants, Shares (in shares) 300,595     300,595