Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details Textual)

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Subsequent Events (Details Textual) - USD ($)
 1 Months Ended 6 Months Ended
Jul. 26, 2018
Jul. 20, 2018
Jun. 30, 2018
Jun. 30, 2017
Jul. 27, 2018
Jul. 25, 2018
Jul. 15, 2018
Jun. 15, 2018
Debt Default, Short-term Debt, Amount     $ 26,400,000         $ 1,725,000
Debt Instrument, Maturity Date, Description     The Company obtained consents from the holders of such notes to initially extend the maturity date of  the June 30
th
Notes to June 15, 2018 and then requested and received consents to extend the maturity date to July 25, 2018.
          
Repayments of Convertible Debt     $ 0 $ 67,500        
Subsequent Event [Member]                
Debt Instrument, Maturity Date, Description   On July 20, 2018, the Company and the holders of the Series G Notes agreed to extend the maturity date of the notes from July 15, 2018 to July 25, 2018            
Proceeds from Issuance Initial Public Offering $ 10,355,000              
Payments for Underwriters Discounts and Commissions 900,000              
Payments for Underwriters Accountable and Nonaccountable Expenses 220,000              
Payments for Legal Accounting and Other Estimated Offering Costs $ 525,000              
Convertible Preferred Stock, Shares Issued upon Conversion 2,762,594              
Debt Conversion, Converted Instrument, Shares Issued 9,516,155              
Repayments of Convertible Debt $ 200,000              
Subsequent Event [Member] | Warrant [Member]                
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right   625,000            
Subsequent Event [Member] | IPO [Member]                
Stock Issued During Period, Shares, New Issues 2,400,000              
Shares Issued, Price Per Share         $ 5.00      
Stock Issued During Period, Value, Issued for Services $ 12,000,000              
Subsequent Event [Member] | MARCorp Signal LLC [Member] | Warrant [Member]                
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right           487,864    
Series G Notes [Member] | Subsequent Event [Member]                
Debt Default, Short-term Debt, Amount             $ 2,812,500  
Debt Instrument Convertible Conversion Price Description   The Company and the holders of the Series G Notes agreed to make the Series G Notes mandatorily convertible in connection with an IPO at a conversion price of the lesser of $4.50 or 40% of the highest price of the common stock sold in an IPO.