Subsequent Event	12 Months Ended
Dec. 31, 2020
Subsequent Events [Abstract]
Subsequent Event	(23) Subsequent Event The Company adopts ASC Topic 855 “Subsequent Events”. The Company evaluates subsequent events that have occurred after the balance sheet date but before the financial statements are issued. There are two types of subsequent events: (1) recognized, or those that provide additional evidence with respect to conditions that existed at the date of the balance sheet, including the estimates inherent in the process of preparing financial statements, and (2) non-recognized, or those that provide evidence with respect to conditions that did not exist at the date of the balance sheet but arose subsequent to that date. The Company performed its evaluation of subsequent events through March 23, 2021. March 2021 Public Offering On March 1, 2021, the Company offered and sold to the public investors an aggregate of 29,277,866 shares of common stock and 14,638,933 warrants to purchase up to 14,638,933 shares of common stock in a firm commitment underwritten public offering for gross proceeds of approximately $21.9 million. The purchase price for each share of common stock and accompanying warrant sold in the offering was $0.75. The warrants are exercisable commencing on March 1, 2021 at an exercise price of $0.75 and will expire on March 1, 2026. In the event of a stock split, stock dividend, combination, subsequent right offering or reclassification of the outstanding shares of Common Stock, the exercise price and the number of shares issuable upon exercise of the warrants shall be proportionately adjusted. The Company intends to use the net proceeds from the offering for general corporate and working capital purposes. January 2021 Public Offering On January 20, 2021, the Company offered and sold to certain institutional investors an aggregate of 26,181,818 shares of common stock and 26,181,818 warrants to purchase up to 26,181,818 shares of common stock in a best-efforts public offering for gross proceeds of approximately $14.4 million. The purchase price for each share of common stock and the corresponding warrant sold in the offering was $0.55. The warrants are exercisable commencing on January 20, 2021 at an exercise price of $0.55 and will expire on January 20, 2026. In the event of a stock split, stock dividend, combination, subsequent right offering or reclassification of the outstanding shares of Common Stock, the exercise price and the number of shares issuable upon exercise of the warrants shall be proportionately adjusted. The Company intends to use the net proceeds from the offering for general corporate and working capital purposes.

Subsequent Event

12 Months Ended

Dec. 31, 2020

(23) Subsequent Event

The Company adopts ASC Topic 855 “Subsequent Events”. The Company evaluates subsequent events that have occurred after the balance sheet date but before the financial statements are issued. There are two types of subsequent events: (1) recognized, or those that provide additional evidence with respect to conditions that existed at the date of the balance sheet, including the estimates inherent in the process of preparing financial statements, and (2) non-recognized, or those that provide evidence with respect to conditions that did not exist at the date of the balance sheet but arose subsequent to that date. The Company performed its evaluation of subsequent events through March 23, 2021.

March 2021 Public Offering

On March 1, 2021, the Company offered and sold to the public investors an aggregate of 29,277,866 shares of common stock and 14,638,933 warrants to purchase up to 14,638,933 shares of common stock in a firm commitment underwritten public offering for gross proceeds of approximately $21.9 million. The purchase price for each share of common stock and accompanying warrant sold in the offering was $0.75. The warrants are exercisable commencing on March 1, 2021 at an exercise price of $0.75 and will expire on March 1, 2026. In the event of a stock split, stock dividend, combination, subsequent right offering or reclassification of the outstanding shares of Common Stock, the exercise price and the number of shares issuable upon exercise of the warrants shall be proportionately adjusted. The Company intends to use the net proceeds from the offering for general corporate and working capital purposes.

January 2021 Public Offering

On January 20, 2021, the Company offered and sold to certain institutional investors an aggregate of 26,181,818 shares of common stock and 26,181,818 warrants to purchase up to 26,181,818 shares of common stock in a best-efforts public offering for gross proceeds of approximately $14.4 million. The purchase price for each share of common stock and the corresponding warrant sold in the offering was $0.55. The warrants are exercisable commencing on January 20, 2021 at an exercise price of $0.55 and will expire on January 20, 2026. In the event of a stock split, stock dividend, combination, subsequent right offering or reclassification of the outstanding shares of Common Stock, the exercise price and the number of shares issuable upon exercise of the warrants shall be proportionately adjusted. The Company intends to use the net proceeds from the offering for general corporate and working capital purposes.