Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details Textual)

v3.20.1
Summary of Significant Accounting Policies (Details Textual) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended
Apr. 30, 2014
Mar. 31, 2020
Mar. 31, 2019
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2011
Summary of Significant Accounting Policies (Textual)            
Advertising and promotional costs   $ 178 $ 236      
Research and development cost   $ 22 $ 9      
Potentially dilutive common stock equivalents outstanding   1,281,736 1,083,082      
Deferred offering costs   $ 79   $ 95    
Cash in bank accounts   678 $ 2,197 $ 64 $ 15  
FDIC coverage limit   250        
Shipping and handling expenses   9 6      
Amortization   $ 52 $ 72      
Intangible assets, terms   Upon issuance of the patent, capitalized patent costs are reclassified from intangibles with indefinite lives to intangibles with finite lives and amortized on a straight-line basis over the shorter of the estimated economic life or the initial term of the patent, generally 20 years.        
Warrant [Member]            
Summary of Significant Accounting Policies (Textual)            
Potentially dilutive common stock equivalents outstanding   663,356 663,356      
Options [Member]            
Summary of Significant Accounting Policies (Textual)            
Potentially dilutive common stock equivalents outstanding   618,380 419,726      
Shipping and Handling [Member]            
Summary of Significant Accounting Policies (Textual)            
Sale of product   $ 9 $ 5      
Patents [Member]            
Summary of Significant Accounting Policies (Textual)            
Intellectual property asset, fair value           $ 2,000
Intellectual Property [Member]            
Summary of Significant Accounting Policies (Textual)            
Estimated useful life of intangible assets 10 years