Common Stock	6 Months Ended
Jun. 30, 2019
Equity [Abstract]
Common Stock	(11) Common Stock Issuance of common stock to investors On August 27, 2014, the Company issued 1,562,500 shares of our common stock and warrants to purchase up to 781,250 shares of our common stock (the "Offering"). Each share of common stock and accompanying warrant was sold at a price of $1.60. Please refer to Note (12), Stock Warrants, for details. Issuance of common stock pursuant to the 2012 Incentive Stock Plan and 2015 Omnibus Equity Incentive On January 12, 2016, the Company granted an aggregate of 1,133,916 shares of common stock under its compensatory incentive plans to nine officers, directors and employees of and a consultant when the stock was at $1.25 per share, as compensation for their services in the past years, of which 168,416 shares of common stock were granted under the 2012 Incentive Stock Plan and 965,500 shares were granted under the 2015 Omnibus Equity Incentive. Please see Note (15), Stock Incentive Plans for more details. Total fair value of the stock was calculated at $1,417,395 as of the date of grant. On September 13, 2018, the compensation committee granted an aggregate of 534,500 shares of common stock at $0.88 per share to fifteen officers, directors and employees of the Company, which were granted under the 2015 Omnibus Equity Incentive Plan. Total fair value of the shares of common stock granted was calculated at $470,360 as of the date of issuance.

Common Stock

6 Months Ended

Jun. 30, 2019

(11) Common Stock

Issuance of common stock to investors

On August 27, 2014, the Company issued 1,562,500 shares of our common stock and warrants to purchase up to 781,250 shares of our common stock (the "Offering"). Each share of common stock and accompanying warrant was sold at a price of $1.60. Please refer to Note (12), Stock Warrants, for details.

Issuance of common stock pursuant to the 2012 Incentive Stock Plan and 2015 Omnibus Equity Incentive

On January 12, 2016, the Company granted an aggregate of 1,133,916 shares of common stock under its compensatory incentive plans to nine officers, directors and employees of and a consultant when the stock was at $1.25 per share, as compensation for their services in the past years, of which 168,416 shares of common stock were granted under the 2012 Incentive Stock Plan and 965,500 shares were granted under the 2015 Omnibus Equity Incentive. Please see Note (15), Stock Incentive Plans for more details. Total fair value of the stock was calculated at $1,417,395 as of the date of grant.

On September 13, 2018, the compensation committee granted an aggregate of 534,500 shares of common stock at $0.88 per share to fifteen officers, directors and employees of the Company, which were granted under the 2015 Omnibus Equity Incentive Plan. Total fair value of the shares of common stock granted was calculated at $470,360 as of the date of issuance.