Private Placement and Common Stock Sales	12 Months Ended
Dec. 31, 2022
Private Placement and Common Stock Sales [Abstract]
Private Placement and Common Stock Sales	Note 16 – Private Placement and Common Stock Sales On December 14, 2020, the Company entered into a Securities Purchase Agreement (the "Purchase Agreement") with certain accredited investors (the "Purchasers") for the sale and issuance by the Company to the Purchasers of (i) an aggregate of 1,429 shares (the "Shares") of the Company's common stock and (ii) warrants (the "Purchaser Warrants") to purchase an aggregate of up to 714 shares of common stock (the "Purchaser Warrant Shares"), for aggregate gross proceeds to the Company of $1,000, before deducting placement agent fees and offering expenses payable by the Company. The Company also agreed to issue to the placement agents and certain persons affiliated with the placement agents, as additional compensation, (a) fully-vested warrants (the "Placement Agent Warrants") to purchase an aggregate of up to 100 shares (the "Placement Agent Warrant Shares") of common stock and (b) contingent warrants (the "Placement Agent Contingent Warrants") to purchase an aggregate of up to an additional 50 shares (the "Placement Agent Contingent Warrant Shares") of common stock. The transaction closed on December 15, 2020. The Purchase Agreement also includes terms that give the Purchasers certain price protections, providing for adjustments of the number of shares of common stock held by them in the event of certain future dilutive securities issuances by the Company for a period not to exceed 18 months following the closing of the private placement, or such earlier date on which all of the Purchaser Warrants have been exercised. In addition, the Purchase Agreement provides the Purchasers with a right to participate in certain future Company financings, up to 30% of the amount of such financings, for a period of 24 months following the closing of the private placement. The Purchase Agreement also required the Company to register the resale of the Shares and the Purchaser Warrant Shares pursuant to the terms of a Registration Rights Agreement between the Company and the Purchasers, dated as of December 14, 2020, as described further below. The Company filed a registration statement with the SEC on January 14, 2021 to register the resale of the Shares and the Purchaser Warrant Shares, which registration statement was declared effective by the SEC on January 21, 2021. The Purchase Agreement obligated the Company to call a special meeting of its stockholders to seek stockholder approval of the issuance of shares of its common stock issuable in connection with this transaction in excess of 19.99% of the Company's outstanding shares of common stock, in accordance with the requirements of Section 713(a) of the New York Stock Exchange (“NYSE”) American Company Guide. Stockholder approval was obtained on March 4, 2021. The Purchaser Warrants have an exercise price of $1.25 per share, are exercisable beginning on December 15, 2020, and have a term of three years. The exercise price and the number of shares of common stock issuable upon exercise of each Purchaser Warrant is subject to appropriate adjustments in the event of certain stock dividends and distributions, stock splits, stock combinations, reclassifications or similar events affecting the common stock. The fair value of the Purchaser Warrants is $643. In certain circumstances, upon the occurrence of a fundamental transaction, a holder of Purchaser Warrants is entitled to receive, upon any subsequent exercise of the Purchaser Warrant, for each Purchaser Warrant Share that would have been issuable upon such exercise of the Purchaser Warrant immediately prior to the fundamental transaction, at the option of the holder, the number of shares of common stock of the successor or acquiring corporation or of the Company, if it is the surviving corporation, and any additional consideration receivable as a result of the fundamental transaction by a holder of the number of shares of common stock of the Company for which the Purchaser Warrant is exercisable immediately prior to the fundamental transaction. If holders of the Company's common stock are given any choice as to the securities, cash or property to be received in a fundamental transaction, then the Holder shall be given the choice as to the additional consideration it receives upon any exercise of the Purchaser Warrant following the fundamental transaction. The Placement Agent Warrants have an exercise price of $0.70 per share, a term of five years from December 14, 2020, and became exercisable upon the Company obtaining the stockholder approval described above. The exercise price and the number of shares of common stock issuable upon exercise of each Placement Agent Warrant is subject to appropriate adjustments in the event of certain stock dividends and distributions, stock splits, stock combinations, reclassifications or similar events affecting the common stock. The Placement Agent Warrants also provide the holders with certain “piggyback” registration rights, permitting the holders to request that the Company include the Placement Agent Warrant Shares for sale in certain registration statements filed by the Company. The fair value of the Placement Agent Warrants is $121. During June and July 2021, the Company received approximately $61 as the result of the exercise of certain Placement Agent Warrants, and the Company issued 87 shares of common stock upon exercise. The Placement Agent Contingent Warrants have an exercise price of $1.25 per share, a term of five years from December 14, 2020, and become exercisable if, and to the extent, holders of the Purchaser Warrants exercise such Purchaser Warrants. In no event, however, will the Placement Agent Contingent Warrants become exercisable unless and until Stockholder Approval has been obtained. The exercise price and the number of shares of common stock issuable upon exercise of each Placement Agent Contingent Warrant is subject to appropriate adjustments in the event of certain stock dividends and distributions, stock splits, stock combinations, reclassifications or similar events affecting the common stock. The Placement Agent Contingent Warrants also provide the holders with certain “piggyback” registration rights, permitting the holders to request that the Company include the Placement Agent Contingent Warrant Shares for sale in certain registration statements filed by the Company. The fair value of the Placement Agent Contingent Warrants is $56. On August 16, 2021, the Company entered into a Sales Agreement (the “Sales Agreement”) with Roth Capital Partners, LLC (the “Agent”). In accordance with the terms of the Sales Agreement, the Company may offer and sell from time to time through the Agent shares of the Company’s common stock, having an aggregate offering price of up to $400. From August 16, 2021 through December 31, 2021, the Company sold an aggregate of 163 shares under the Sales Agreement at prices ranging from $1.088 to $1.139 per share, for aggregate proceeds, net of sales commissions, of approximately $175. On August 23, 2021, the Company entered into a Stock Purchase Agreement (the “August Purchase Agreement”) with an institutional investor providing for the sale by the Company to the investor of 200 shares of the Company’s common stock at a purchase price of $1.08 per share, resulting in aggregate proceeds to the Company of $216. The shares were offered and sold pursuant to the Company’s effective shelf registration statement on Form S-3. The Company's sale of the shares pursuant to the August Purchase Agreement will have the effect of reducing the amount of shares that may be sold pursuant to the Sales Agreement from $400 to $184. Taking into account sales of common stock pursuant to the August Purchase Agreement and sales of common stock pursuant to the Sales Agreement to date, the amount available to be sold under the Sales Agreement is currently $9. On November 15, 2021, the Company entered into a Stock Purchase Agreement (the “November Purchase Agreement”) with an institutional investor providing for the sale by the Company to the investor of 425 shares of the Company’s common stock, at a purchase price of $1.12 per share, resulting in aggregate proceeds to the Company of $476. The shares were offered and sold pursuant to the Company’s shelf registration statement on Form S-3.

Private Placement and Common Stock Sales

12 Months Ended

Dec. 31, 2022

Private Placement and Common Stock Sales [Abstract]

Private Placement and Common Stock Sales

Note 16 – Private Placement and Common Stock Sales

On December 14, 2020, the Company entered into a Securities Purchase Agreement (the "Purchase Agreement") with certain accredited investors (the "Purchasers") for the sale and issuance by the Company to the Purchasers of (i) an aggregate of 1,429 shares (the "Shares") of the Company's common stock and (ii) warrants (the "Purchaser Warrants") to purchase an aggregate of up to 714 shares of common stock (the "Purchaser Warrant Shares"), for aggregate gross proceeds to the Company of $1,000, before deducting placement agent fees and offering expenses payable by the Company. The Company also agreed to issue to the placement agents and certain persons affiliated with the placement agents, as additional compensation, (a) fully-vested warrants (the "Placement Agent Warrants") to purchase an aggregate of up to 100 shares (the "Placement Agent Warrant Shares") of common stock and (b) contingent warrants (the "Placement Agent Contingent Warrants") to purchase an aggregate of up to an additional 50 shares (the "Placement Agent Contingent Warrant Shares") of common stock. The transaction closed on December 15, 2020.

The Purchase Agreement also includes terms that give the Purchasers certain price protections, providing for adjustments of the number of shares of common stock held by them in the event of certain future dilutive securities issuances by the Company for a period not to exceed 18 months following the closing of the private placement, or such earlier date on which all of the Purchaser Warrants have been exercised. In addition, the Purchase Agreement provides the Purchasers with a right to participate in certain future Company financings, up to 30% of the amount of such financings, for a period of 24 months following the closing of the private placement. The Purchase Agreement also required the Company to register the resale of the Shares and the Purchaser Warrant Shares pursuant to the terms of a Registration Rights Agreement between the Company and the Purchasers, dated as of December 14, 2020, as described further below. The Company filed a registration statement with the SEC on January 14, 2021 to register the resale of the Shares and the Purchaser Warrant Shares, which registration statement was declared effective by the SEC on January 21, 2021.

The Purchase Agreement obligated the Company to call a special meeting of its stockholders to seek stockholder approval of the issuance of shares of its common stock issuable in connection with this transaction in excess of 19.99% of the Company's outstanding shares of common stock, in accordance with the requirements of Section 713(a) of the New York Stock Exchange (“NYSE”) American Company Guide. Stockholder approval was obtained on March 4, 2021.

The Purchaser Warrants have an exercise price of $1.25 per share, are exercisable beginning on December 15, 2020, and have a term of three years. The exercise price and the number of shares of common stock issuable upon exercise of each Purchaser Warrant is subject to appropriate adjustments in the event of certain stock dividends and distributions, stock splits, stock combinations, reclassifications or similar events affecting the common stock. The fair value of the Purchaser Warrants is $643.

In certain circumstances, upon the occurrence of a fundamental transaction, a holder of Purchaser Warrants is entitled to receive, upon any subsequent exercise of the Purchaser Warrant, for each Purchaser Warrant Share that would have been issuable upon such exercise of the Purchaser Warrant immediately prior to the fundamental transaction, at the option of the holder, the number of shares of common stock of the successor or acquiring corporation or of the Company, if it is the surviving corporation, and any additional consideration receivable as a result of the fundamental transaction by a holder of the number of shares of common stock of the Company for which the Purchaser Warrant is exercisable immediately prior to the fundamental transaction. If holders of the Company's common stock are given any choice as to the securities, cash or property to be received in a fundamental transaction, then the Holder shall be given the choice as to the additional consideration it receives upon any exercise of the Purchaser Warrant following the fundamental transaction.

The Placement Agent Warrants have an exercise price of $0.70 per share, a term of five years from December 14, 2020, and became exercisable upon the Company obtaining the stockholder approval described above. The exercise price and the number of shares of common stock issuable upon exercise of each Placement Agent Warrant is subject to appropriate adjustments in the event of certain stock dividends and distributions, stock splits, stock combinations, reclassifications or similar events affecting the common stock. The Placement Agent Warrants also provide the holders with certain “piggyback” registration rights, permitting the holders to request that the Company include the Placement Agent Warrant Shares for sale in certain registration statements filed by the Company. The fair value of the Placement Agent Warrants is $121. During June and July 2021, the Company received approximately $61 as the result of the exercise of certain Placement Agent Warrants, and the Company issued 87 shares of common stock upon exercise.

The Placement Agent Contingent Warrants have an exercise price of $1.25 per share, a term of five years from December 14, 2020, and become exercisable if, and to the extent, holders of the Purchaser Warrants exercise such Purchaser Warrants. In no event, however, will the Placement Agent Contingent Warrants become exercisable unless and until Stockholder Approval has been obtained. The exercise price and the number of shares of common stock issuable upon exercise of each Placement Agent Contingent Warrant is subject to appropriate adjustments in the event of certain stock dividends and distributions, stock splits, stock combinations, reclassifications or similar events affecting the common stock. The Placement Agent Contingent Warrants also provide the holders with certain “piggyback” registration rights, permitting the holders to request that the Company include the Placement Agent Contingent Warrant Shares for sale in certain registration statements filed by the Company. The fair value of the Placement Agent Contingent Warrants is $56.

On August 16, 2021, the Company entered into a Sales Agreement (the “Sales Agreement”) with Roth Capital Partners, LLC (the “Agent”). In accordance with the terms of the Sales Agreement, the Company may offer and sell from time to time through the Agent shares of the Company’s common stock, having an aggregate offering price of up to $400. From August 16, 2021 through December 31, 2021, the Company sold an aggregate of 163 shares under the Sales Agreement at prices ranging from $1.088 to $1.139 per share, for aggregate proceeds, net of sales commissions, of approximately $175.

On August 23, 2021, the Company entered into a Stock Purchase Agreement (the “August Purchase Agreement”) with an institutional investor providing for the sale by the Company to the investor of 200 shares of the Company’s common stock at a purchase price of $1.08 per share, resulting in aggregate proceeds to the Company of $216. The shares were offered and sold pursuant to the Company’s effective shelf registration statement on Form S-3. The Company's sale of the shares pursuant to the August Purchase Agreement will have the effect of reducing the amount of shares that may be sold pursuant to the Sales Agreement from $400 to $184. Taking into account sales of common stock pursuant to the August Purchase Agreement and sales of common stock pursuant to the Sales Agreement to date, the amount available to be sold under the Sales Agreement is currently $9.

On November 15, 2021, the Company entered into a Stock Purchase Agreement (the “November Purchase Agreement”) with an institutional investor providing for the sale by the Company to the investor of 425 shares of the Company’s common stock, at a purchase price of $1.12 per share, resulting in aggregate proceeds to the Company of $476. The shares were offered and sold pursuant to the Company’s shelf registration statement on Form S-3.