Subsequent Events	12 Months Ended
Dec. 31, 2019
Subsequent Events [Abstract]
Subsequent Events	16. Subsequent Events On January 11, 2019, the Company received a letter from the Listing Qualifications Staff , or Staff, of The Nasdaq Stock Market LLC, or Nasdaq, indicating that the Company had not regained compliance with the $1.00 minimum bid price requirement for continued listing on The Nasdaq Capital Market, as set forth in Nasdaq Listing Rule 5450(a)(1), or Bid Price Rule. Pursuant to the Nasdaq Listing Rule 5810(c)(3)(A), the Company was granted an 180-calendar day compliance period, or until July 7, 2019, to regain compliance with the minimum bid price requirement. During the initial compliance period, the Company’s shares of common stock continued to be listed and traded on The Nasdaq Capital Market. To regain compliance, the closing bid price of the Company’s shares of common stock must meet or exceed $1.00 per share for at least ten consecutive business days during this 180-day grace period, which was not satisfied during the initial compliance period. Thereafter, the Company had been afforded a second 180-calendar day compliance period, or until January 6, 2020, to regain compliance with the Bid Price Rule since the Company notified Nasdaq of its intent to cure the deficiency by effecting a reverse stock split in order to regain compliance therewith. The Company was unable to regain compliance with the Bid Price Rule by January 6, 2020. Accordingly, on January 7, 2020, the Company received a letter from the Staff notifying it that its Common Stock would be subject to delisting from Nasdaq unless the Company timely appealed Nasdaq’s determination to a Nasdaq Listing Qualifications Panel, or Panel. The Company timely appealed Nasdaq’s determination to the Panel to request a hearing, at which time it will present its plan to gain compliance with the Bid Price Rule, and request a further extension of time to do so. The Panel has the discretion to grant the Company up to an additional 180 calendar days from the date of the Staff’s notice, or until July 6, 2020, to satisfy the Bid Price Rule. The Company’s appeal has automatically stayed any delisting action pending the issuance of a final decision and the expiration of any further extension granted by the Panel. There can be no assurance that the Panel will grant the Company’s request for continued listing. Notwithstanding the above, on October 28, 2019 the Company’s stockholders approved a proposed amendment to our Amended and Restated Certificate of Incorporation that shall, when filed, effect a reverse stock split at a ratio of not less than 1-for-5 and not greater than 1-for-20, with the exact ratio and effective time of the reverse stock split to be determined by the Company's board of directors before the filing of the certificate of amendment, and in any event, at any time within one year of the date of the Special Meeting. The Company believes that it shall therefore be in a position to cure the deficiency by effecting a reverse stock split in order to regain compliance with the minimum closing bid price requirement if the panel does not grant the Company’s request for continued listing.

16. Subsequent Events

On January 11, 2019, the Company received a letter from the Listing Qualifications Staff , or Staff, of The Nasdaq Stock Market LLC, or Nasdaq, indicating that the Company had not regained compliance with the $1.00 minimum bid price requirement for continued listing on The Nasdaq Capital Market, as set forth in Nasdaq Listing Rule 5450(a)(1), or Bid Price Rule. Pursuant to the Nasdaq Listing Rule 5810(c)(3)(A), the Company was granted an 180-calendar day compliance period, or until July 7, 2019, to regain compliance with the minimum bid price requirement. During the initial compliance period, the Company’s shares of common stock continued to be listed and traded on The Nasdaq Capital Market. To regain compliance, the closing bid price of the Company’s shares of common stock must meet or exceed $1.00 per share for at least ten consecutive business days during this 180-day grace period, which was not satisfied during the initial compliance period. Thereafter, the Company had been afforded a second 180-calendar day compliance period, or until January 6, 2020, to regain compliance with the Bid Price Rule since the Company notified Nasdaq of its intent to cure the deficiency by effecting a reverse stock split in order to regain compliance therewith.

The Company was unable to regain compliance with the Bid Price Rule by January 6, 2020. Accordingly, on January 7, 2020, the Company received a letter from the Staff notifying it that its Common Stock would be subject to delisting from Nasdaq unless the Company timely appealed Nasdaq’s determination to a Nasdaq Listing Qualifications Panel, or Panel.

The Company timely appealed Nasdaq’s determination to the Panel to request a hearing, at which time it will present its plan to gain compliance with the Bid Price Rule, and request a further extension of time to do so. The Panel has the discretion to grant the Company up to an additional 180 calendar days from the date of the Staff’s notice, or until July 6, 2020, to satisfy the Bid Price Rule. The Company’s appeal has automatically stayed any delisting action pending the issuance of a final decision and the expiration of any further extension granted by the Panel. There can be no assurance that the Panel will grant the Company’s request for continued listing.

Notwithstanding the above, on October 28, 2019 the Company’s stockholders approved a proposed amendment to our Amended and Restated Certificate of Incorporation that shall, when filed, effect a reverse stock split at a ratio of not less than 1-for-5 and not greater than 1-for-20, with the exact ratio and effective time of the reverse stock split to be determined by the Company's board of directors before the filing of the certificate of amendment, and in any event, at any time within one year of the date of the Special Meeting. The Company believes that it shall therefore be in a position to cure the deficiency by effecting a reverse stock split in order to regain compliance with the minimum closing bid price requirement if the panel does not grant the Company’s request for continued listing.