Subsequent Events	12 Months Ended
Dec. 31, 2023
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On February 5, 2024, the Company entered into a patent license agreement to develop cavrotolimod for potential treatment for hepatitis with a private clinical stage biopharmaceutical company. Under the terms of the agreement, this biopharmaceutical company will receive an exclusive license in the field of hepatitis to all of Exicure’s relevant patents. An initial payment of $500 was paid to Exicure after the execution of this agreement that was recorded as other income. Exicure will also be entitled to modest royalties on future net sales on all licensed technology during the term of the licensed patents. Exicure will be responsible for, and make all decisions concerning, the preparation, filing, prosecution, and maintenance for each patent and patent application included within the licensed patents. On May 3, 2024, the Company executed a promissory note (“Note”) and subsequently received a loan in the amount of $300 from an individual investor. All principal and accrued interest will be due and payable on the earlier of (i) the 1st anniversary of the date of this Note or (ii) upon an event of default, at that time, such amounts declared by the investor will become due and payable by Company. Interest will accrue on this Note at 6.0% and is payable at maturity. On June 3, 2024, the Company executed another promissory note (“DGP Note”) and subsequently received a loan in the amount of $700 from DGP, a related party. All principal and accrued interest will be due and payable on the earlier of (i) ten months from the date of this DGP Note or (ii) upon an event of default, at that time, such amounts declared by the investor will become due and payable by Company. Interest will accrue on this DGP Note at 6.0% and is payable at maturity.

On February 5, 2024, the Company entered into a patent license agreement to develop cavrotolimod for potential treatment for hepatitis with a private clinical stage biopharmaceutical company. Under the terms of the agreement, this biopharmaceutical company will receive an exclusive license in the field of hepatitis to all of Exicure’s relevant patents. An initial payment of $500 was paid to Exicure after the execution of this agreement that was recorded as other income. Exicure will also be entitled to modest royalties on future net sales on all licensed technology during the term of the licensed patents. Exicure will be responsible for, and make all decisions concerning, the preparation, filing, prosecution, and maintenance for each patent and patent application included within the licensed patents.

On May 3, 2024, the Company executed a promissory note (“Note”) and subsequently received a loan in the amount of $300 from an individual investor. All principal and accrued interest will be due and payable on the earlier of (i) the 1st anniversary of the date of this Note or (ii) upon an event of default, at that time, such amounts declared by the investor will become due and payable by Company. Interest will accrue on this Note at 6.0% and is payable at maturity.

On June 3, 2024, the Company executed another promissory note (“DGP Note”) and subsequently received a loan in the amount of $700 from DGP, a related party. All principal and accrued interest will be due and payable on the earlier of (i) ten months from the date of this DGP Note or (ii) upon an event of default, at that time, such amounts declared by the investor will become due and payable by Company. Interest will accrue on this DGP Note at 6.0% and is payable at maturity.