Quarterly report pursuant to Section 13 or 15(d)

Note 2 - Summary of Significant Accounting Policies - Customer Contract Liabilities (Details)

v3.20.2
Note 2 - Summary of Significant Accounting Policies - Customer Contract Liabilities (Details) - USD ($)
6 Months Ended
Jun. 30, 2020
Dec. 31, 2019
Customer contract liabilities $ 21,000 $ 108,000
Change in customer contract liabilities (87,000)  
Marketing Programs [Member]    
Customer contract liabilities 21,000 $ 108,000
Change in customer contract liabilities $ (87,000)