Quarterly report pursuant to Section 13 or 15(d)

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

v3.20.1
Note 2 - Summary of Significant Accounting Policies - Customer Contract Liabilities (Details) - USD ($)
3 Months Ended
Mar. 31, 2020
Dec. 31, 2019
Customer contract liabilities $ 25,000 $ 108,000
Change in customer contract liabilities (83,000)  
Marketing Programs [Member]    
Customer contract liabilities 25,000 $ 108,000
Change in customer contract liabilities $ (83,000)