Quarterly report pursuant to Section 13 or 15(d)

Debt and Interest- Additional Information (Details)

v3.19.2
Debt and Interest- Additional Information (Details)
1 Months Ended
Mar. 29, 2019
USD ($)
D
installment
$ / shares
shares
Jun. 30, 2019
Debt [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage   2.50%
Amortization Payments, Installments | installment 18  
Number of Business Days Prior Written Notice | D 10  
Debt Instrument, Periodic Payment, Principal $ 500,000  
Percent of Outstanding Loan Principal Amount for Calculation of Repayment Change 4.00%  
Percentage Of Amortization Loan Date 3.00%  
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate 2.00%  
Line of Credit Facility, Periodic Payment $ 300,000  
Line of Credit Facility, Periodic Payment, Principal 800,000  
Proceeds from Lines of Credit $ 15,000,000  
Accrued Interest Percentage 5.00%  
Percentage of Warrants Included in Debt 5.00%  
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right | shares 288,184  
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares $ 3.47  
Warrants Not Settleable in Cash, Fair Value Disclosure $ 900,000  
Minimum [Member]    
Debt [Line Items]    
Cash 8,000,000  
Maximum [Member]    
Debt [Line Items]    
Cash 13,000,000  
Horizon Technology Finance Corporation [Member]    
Debt [Line Items]    
Legal Fees 1,200,000  
Line of Credit Facility, Commitment Fee Amount 200,000  
Reimbursement of Legal Fees 30,000  
Mustang Two Thousand Nineteen Venture Debt [Member]    
Debt [Line Items]    
Line of Credit Facility, Maximum Borrowing Capacity 15,000,000  
Line of Credit Facility, Current Borrowing Capacity 20,000,000  
Line of Credit Facility, Remaining Borrowing Capacity $ 5,000,000  
LIBOR Rate [Member]    
Debt [Line Items]    
Debt Instrument, Interest Rate, Stated Percentage   9.00%
Debt Instrument, Basis Spread on Variable Rate 9.00%