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v3.19.2

Notes Payable - Additional Information (Details) - USD ($) | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Mar. 29, 2019 | Mar. 27, 2019 | Jun. 30, 2019 | Jun. 30, 2019
Debt Instrument [Line Items] |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage | 2.50% |  |  |
Debt Instrument, Basis Spread on Variable Rate | 9.00% |  |  |
Debt Instrument, Periodic Payment, Principal | $ 500,000 |  |  |
Percentage of Prepayment charge | 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 | $ 250,000 |  |  |
Line of Credit Facility, Periodic Payment, Principal | 750,000 |  |  |
Proceeds from Lines of Credit | $ 15,000,000 |  |  |
Accrued interest percentage |  | 5.00% | 5.00% |
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right | 288,184 |  |  |
Fair Value Of Warrant Issued | $ 900,000 |  |  |
Percentage of warrant coverage | 5.00% |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ 3.47 |  |  |
Line of Credit Facility, Commitment Fee Amount | $ 200,000 |  |  |
Legal Fees | 30,000 |  |  |
Line of Credit Facility, Collateral Fees, Amount | 1,200,000 |  |  |
Amortization of Debt Issuance Costs and Discounts |  |  | $ 200,000 | $ 200,000
Debt Instrument, Final Amount Payable |  |  | $ 750,000 | $ 750,000
Minimum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Cash. | 8,000,000 |  |  |
Maximum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Cash. | 13,000,000 |  |  |
Horizon technology finance member [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | 20,000,000 |  |  |
Line of Credit Facility, Current Borrowing Capacity | 15,000,000 |  |  |
Line of Credit Facility, Remaining Borrowing Capacity | $ 5,000,000 |  |  |

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