Annual report pursuant to Section 13 and 15(d)

Revenue Recognition and Reserve for Sales Returns and Allowances (Details Narrative)

v3.20.1
Revenue Recognition and Reserve for Sales Returns and Allowances (Details Narrative) - USD ($)
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Revenue recognition reserve for sales returns and allowances $ 13,000 $ 13,000
Maximum [Member] | Revenue [Member]    
Concentration risk, percentage 5.00%  
Minimum [Member] | Revenue [Member]    
Concentration risk, percentage 2.00%