Quarterly report pursuant to Section 13 or 15(d)

Organization and Summary of Significant Accounting Policies (Details Textual)

v3.19.3
Organization and Summary of Significant Accounting Policies (Details Textual) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
Jan. 02, 2019
Dec. 31, 2017
Organization and Summary of Significant Accounting Policies (Textual)              
Inventory reserves $ 330,000   $ 330,000   $ 330,000    
Operating lease right-of-use assets 2,339,353   2,339,353      
Operating lease liabilities 2,408,623   2,408,623      
Warranty reserve 175,000   175,000   175,000   $ 175,000
Accounting Standards Update 2016-02 [Member]              
Organization and Summary of Significant Accounting Policies (Textual)              
Operating lease right-of-use assets           $ 2,847,495  
Operating lease liabilities           $ 2,847,495  
Australian Dollars [Member]              
Organization and Summary of Significant Accounting Policies (Textual)              
Cash 15,257   15,257   152,254    
Romanian Leu [Member]              
Organization and Summary of Significant Accounting Policies (Textual)              
Cash $ 5,120   $ 5,120   $ 9,368    
Vendor One [Member] | Accounts Payable [Member]              
Organization and Summary of Significant Accounting Policies (Textual)              
Concentration risk     35.00%   71.00%    
Vendor Two [Member] | Accounts Payable [Member]              
Organization and Summary of Significant Accounting Policies (Textual)              
Concentration risk     10.00%   3.00%    
Vendor Three [Member] | Accounts Payable [Member]              
Organization and Summary of Significant Accounting Policies (Textual)              
Concentration risk     7.00%   3.00%    
Accounts Receivable [Member] | Customer One [Member]              
Organization and Summary of Significant Accounting Policies (Textual)              
Concentration risk     78.00%   45.00%    
Accounts Receivable [Member] | Customer Two [Member]              
Organization and Summary of Significant Accounting Policies (Textual)              
Concentration risk     6.00%   42.00%    
Purchases [Member] | Yanmar [Member]              
Organization and Summary of Significant Accounting Policies (Textual)              
Concentration risk 53.00% 48.00% 44.00% 76.00%      
Revenues [Member] | Customer One [Member] | Tier-1 telecommunications wireless carriers [Member]              
Organization and Summary of Significant Accounting Policies (Textual)              
Concentration risk 84.00% 39.00% 68.00% 61.00%      
Revenues [Member] | Customer One [Member] | Sales to Telecommunications Customers [Member]              
Organization and Summary of Significant Accounting Policies (Textual)              
Concentration risk 97.00% 84.00% 97.00% 89.00%      
Revenues [Member] | Customer Two [Member] | Tier-1 telecommunications wireless carriers [Member]              
Organization and Summary of Significant Accounting Policies (Textual)              
Concentration risk 7.50% 37.00% 19.00% 13.00%      
Revenues [Member] | Customer Three [Member] | Tier-1 telecommunications wireless carriers [Member]              
Organization and Summary of Significant Accounting Policies (Textual)              
Concentration risk       12.00%      
Minimum [Member]              
Organization and Summary of Significant Accounting Policies (Textual)              
Warranty term     1 year        
Maximum [Member]              
Organization and Summary of Significant Accounting Policies (Textual)              
Warranty term     5 years