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Nature of Business and Summary of Significant Accounting Policies (Tables)
12 Months Ended
Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Schedule of Contract Liabilities

Total contract liabilities consist of the following:

 

    December 31, 2019     December 31, 2018  
Contract liabilities, current   $ 1,707,943     $ 1,748,789  
Contract liabilities, non-current     1,803,143       1,991,091  
                 
Total contract liabilities   $ 3,511,086     $ 3,739,880  

Schedule of Revenues

Revenues for the years ended December 31, 2019 and 2018 were derived from the following sources:

 

    Year ended December 31,  
    2019     2018  
DVM-800   $ 3,756,544     $ 5,090,804  
Repair and service     1,505,849       1,466,845  
FirstVu HD     1,264,457       1,386,737  
DVM-250 Plus     1,133,557       757,676  
Cloud service revenue     754,586       693,653  
DVM-750           403,390  
VuLink     140,392       190,951  
EVO     287,012        
Laser Ally           79,155  
DVM-100 & DVM-400     7,890       75,421  
Accessories and other revenues     1,591,077       1,146,777  
    $ 10,441,364     $ 11,291,409  

Summary of Sales by Geographic Area

For the year ended December 31, 2019 and 2018, sales by geographic area were as follows:

 

    Year ended December 31,  
    2019     2018  
Sales by geographic area:                
United States of America   $ 10,251,259     $ 10,929,071  
Foreign     190,105       362,338  
    $ 10,441,364     $ 11,291,409