Equity Transactions	12 Months Ended
Dec. 31, 2020
Equity [Abstract]
Equity Transactions	5. Equity Transactions Preferred Stock Offering On September 29, 2017, the Company entered into a Securities Purchase Agreement with several investors for the issuance and sale (the “Offering”) of 5,500 shares of the Company’s newly designated Series B 10% Convertible Preferred Stock (the “Series B Preferred Stock”) at a stated value of $1,000 per share, for a total purchase price of $5.5 million. The Series B Preferred Stock was then convertible into the Company’s Common Stock at a conversion price of $1.14 per share, which was the closing bid price of the Common Stock on September 28, 2017, or 4,824,562 shares of Common Stock in the aggregate. The holders of Series B Preferred Stock were entitled to receive cumulative dividends out of funds legally available thereof at a rate of ten percent (10%) per annum, payable (i) when and as declared by the Board of Directors, in quarterly installments on March 1, June 1, September 1 and December 1, (ii) upon conversion into Common Stock with respect the Series B Preferred Stock being converted, and (iii) upon redemption of the Series B Preferred Stock by the Company. In the event that the trading price of the Company’s Common Stock for 20 consecutive trading days (as determined in the Certificate of Designation) exceeded 400% of the then effective Conversion Price of the Series B Preferred Stock (initially set at $1.14), the Company was able to force conversion of the Series B Preferred Stock into shares of Common Stock or elect to redeem the Series B Preferred Stock for cash. In addition, upon the occurrence of certain triggering events, each holder of Series B Preferred Stock had the right to require the Company to redeem such holder’s shares for cash equal to the stated value plus accrued and unpaid dividends and liquidated damages, costs, expenses and other amounts due in respect of the Series B Preferred Stock, and with respect to certain other triggering events, each holder had have the right to increase the dividend rate on such holder’s Series B Preferred Stock to twelve percent (12%) while such triggering event is continuing. During the third quarter of 2019, the Company forced conversion of all outstanding Series B Preferred Stock in accordance with its terms. Warrants The Company issued warrants to purchase shares of Common Stock in connection with registered direct offerings completed in May 2017, March 2018, May 2018 and November 2018. As of December 31, 2020 and 2019, there were approximately 3.7 million and 5.8 million warrants outstanding, respectively, with exercise prices ranging from $1.16 to $2.38 per share. F-17

Equity Transactions

12 Months Ended

Dec. 31, 2020

5. Equity Transactions

Preferred Stock Offering

On September 29, 2017, the Company entered into a Securities Purchase Agreement with several investors for the issuance and sale (the “Offering”) of 5,500 shares of the Company’s newly designated Series B 10% Convertible Preferred Stock (the “Series B Preferred Stock”) at a stated value of $1,000 per share, for a total purchase price of $5.5 million. The Series B Preferred Stock was then convertible into the Company’s Common Stock at a conversion price of $1.14 per share, which was the closing bid price of the Common Stock on September 28, 2017, or 4,824,562 shares of Common Stock in the aggregate. The holders of Series B Preferred Stock were entitled to receive cumulative dividends out of funds legally available thereof at a rate of ten percent (10%) per annum, payable (i) when and as declared by the Board of Directors, in quarterly installments on March 1, June 1, September 1 and December 1, (ii) upon conversion into Common Stock with respect the Series B Preferred Stock being converted, and (iii) upon redemption of the Series B Preferred Stock by the Company.

In the event that the trading price of the Company’s Common Stock for 20 consecutive trading days (as determined in the Certificate of Designation) exceeded 400% of the then effective Conversion Price of the Series B Preferred Stock (initially set at $1.14), the Company was able to force conversion of the Series B Preferred Stock into shares of Common Stock or elect to redeem the Series B Preferred Stock for cash. In addition, upon the occurrence of certain triggering events, each holder of Series B Preferred Stock had the right to require the Company to redeem such holder’s shares for cash equal to the stated value plus accrued and unpaid dividends and liquidated damages, costs, expenses and other amounts due in respect of the Series B Preferred Stock, and with respect to certain other triggering events, each holder had have the right to increase the dividend rate on such holder’s Series B Preferred Stock to twelve percent (12%) while such triggering event is continuing.

During the third quarter of 2019, the Company forced conversion of all outstanding Series B Preferred Stock in accordance with its terms.

Warrants

The Company issued warrants to purchase shares of Common Stock in connection with registered direct offerings completed in May 2017, March 2018, May 2018 and November 2018. As of December 31, 2020 and 2019, there were approximately 3.7 million and 5.8 million warrants outstanding, respectively, with exercise prices ranging from $1.16 to $2.38 per share.

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