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v3.19.2

Outstanding Debt - Additional Information (Details) - USD ($) |  | 3 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 29, 2019 | Mar. 31, 2019 | Dec. 31, 2018 | Sep. 21, 2018
Debt Instrument [Line Items] |  |  |  |
Debt instrument, principal face amount |  | $ 6,100,000 | $ 4,500,000 |
Series D Preferred Shares [Member] |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Interest rate | 8.00% |  |  |
Preferred stock, stated value | $ 1,160,000 |  |  |
Proceeds from exchange of preferred stock | 400,000 |  |  |
Issuance of senior secured promissory note in exchange of preferred stock | $ 1,560,000 |  |  |
Maturity date | Apr. 01, 2020 |  |  |
Senior Secured Convertible Notes |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Interest rate |  |  |  | 8.00%
Debt instrument, principal face amount |  |  |  | $ 9,400,000
Debt instrument maturity start date |  | Dec. 31, 2018 |  |
Debt instrument maturity end date |  | Mar. 31, 2021 |  |

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