Subsequent Events	3 Months Ended
Mar. 31, 2023
Subsequent Events [Abstract]
Subsequent Events	Note 11 - Subsequent Events The Company evaluates subsequent events and transactions that occur after the balance sheet date up to the date that the unaudited condensed consolidated financial statements are issued. Other than as disclosed in this Note 11 and as may be disclosed elsewhere in the notes to the accompanying unaudited condensed consolidated financial statements, there have been no subsequent events that require adjustment or disclosure in the accompanying unaudited condensed consolidated financial statements. On April 5, 2023, the Company reported that it signed an amendment to its research and development collaboration agreement with FIND, to expand the collaboration which was originally started in fall of 2022. The amendment is for an additional €130 thousand, increasing the total project volume to €830 thousand in revenue potential. On May 1, 2023, the Company entered into, and on May 4, 2023, the Company closed the transactions contemplated by a securities purchase agreement with a certain institutional investor, pursuant to which the Company agreed to issue and sell to the Investor in a best-efforts public offering (i) 605,000 shares of the Company’s common stock, par value $0.01 per share, (ii) pre-funded warrants to purchase up to an aggregate of 3,890,825 shares of common stock, and (iii) common warrants to purchase up to an aggregate of 4,495,825 shares of common stock. Each share of common stock and accompanying common warrant was sold at a price of $0.7785 per share and accompanying common warrant, and each pre-funded warrant and accompanying common warrant was sold at an offering price of $0.7685 per share underlying such pre-funded warrant and accompanying common warrant, for aggregate gross proceeds of approximately $3.5 million and net proceeds of approximately $3.0 million. The common warrants have an exercise price of $0.7785 per share and will be exercisable beginning on the date of stockholder approval of the exercisability of the warrants under Nasdaq rules. The common warrants will expire on the five-year anniversary of the date of such stockholder approval. Each pre-funded warrant has an exercise price per share of common stock equal to $0.01 per share and may be exercised at any time until the pre-funded warrants are exercised in full. In connection with the offering, the Company also entered into a warrant amendment agreement with the investor pursuant to which the Company agreed to amend certain existing warrants to purchase up to 6,396,903 shares of common stock that were previously issued in 2018, 2021, 2022 and 2023 to the investor, with exercise prices ranging from $2.65 to $7.54 per share, in consideration for their purchase of the securities in the offering, as follows: (i) lower the exercise price of the existing warrants to $0.7785 per share, (ii) provide that the existing warrants, as amended, will not be exercisable until the receipt of stockholder approval for the exercisability of the common warrants in the offering, and (iii) extend the original expiration date of the existing warrants by five years following the receipt of such stockholder approval. The increase in fair value resulting from the warrant modifications is accounted for as an equity issuance cost, resulting in a debit and credit to additional paid in capital of approximately $0.3 million.

Subsequent Events

3 Months Ended

Mar. 31, 2023

Note 11 - Subsequent Events

The Company evaluates subsequent events and transactions that occur after the balance sheet date up to the date that the unaudited condensed consolidated financial statements are issued.

Other than as disclosed in this Note 11 and as may be disclosed elsewhere in the notes to the accompanying unaudited condensed consolidated financial statements, there have been no subsequent events that require adjustment or disclosure in the accompanying unaudited condensed consolidated financial statements.

On April 5, 2023, the Company reported that it signed an amendment to its research and development collaboration agreement with FIND, to expand the collaboration which was originally started in fall of 2022. The amendment is for an additional €130 thousand, increasing the total project volume to €830 thousand in revenue potential.

On May 1, 2023, the Company entered into, and on May 4, 2023, the Company closed the transactions contemplated by a securities purchase agreement with a certain institutional investor, pursuant to which the Company agreed to issue and sell to the Investor in a best-efforts public offering (i) 605,000 shares of the Company’s common stock, par value $0.01 per share, (ii) pre-funded warrants to purchase up to an aggregate of 3,890,825 shares of common stock, and (iii) common warrants to purchase up to an aggregate of 4,495,825 shares of common stock. Each share of common stock and accompanying common warrant was sold at a price of $0.7785 per share and accompanying common warrant, and each pre-funded warrant and accompanying common warrant was sold at an offering price of $0.7685 per share underlying such pre-funded warrant and accompanying common warrant, for aggregate gross proceeds of approximately $3.5 million and net proceeds of approximately $3.0 million. The common warrants have an exercise price of $0.7785 per share and will be exercisable beginning on the date of stockholder approval of the exercisability of the warrants under Nasdaq rules. The common warrants will expire on the five-year anniversary of the date of such stockholder approval. Each pre-funded warrant has an exercise price per share of common stock equal to $0.01 per share and may be exercised at any time until the pre-funded warrants are exercised in full. In connection with the offering, the Company also entered into a warrant amendment agreement with the investor pursuant to which the Company agreed to amend certain existing warrants to purchase up to 6,396,903 shares of common stock that were previously issued in 2018, 2021, 2022 and 2023 to the investor, with exercise prices ranging from $2.65 to $7.54 per share, in consideration for their purchase of the securities in the offering, as follows: (i) lower the exercise price of the existing warrants to $0.7785 per share, (ii) provide that the existing warrants, as amended, will not be exercisable until the receipt of stockholder approval for the exercisability of the common warrants in the offering, and (iii) extend the original expiration date of the existing warrants by five years following the receipt of such stockholder approval. The increase in fair value resulting from the warrant modifications is accounted for as an equity issuance cost, resulting in a debit and credit to additional paid in capital of approximately $0.3 million.