Commitments and Contingencies (Details Textual)		1 Months Ended		12 Months Ended
	Sep. 03, 2014 USD ($) shares	Jan. 31, 2020 shares	Jun. 30, 2018 USD ($)	Dec. 31, 2019 USD ($) ft²
Commitments and Contingencies (Textual)
Commitments related to agreements				$ 400,000
Maximum payment for commitment milestones	$ 10,000,000			$ 7,900,000
Office lease amendment date				October 2017
Office lease agreement expiration date				Oct. 31, 2020
Percentage for royalties				0.00%
Number of months that office rent increases				12 months
Monthly office rent amount before increment				$ 11,367
Monthly office rent amount before increment, per square foot				22.00
Number of remaining months for which increased rent paid				12 months
New office rent amount, Nov. 1, 2018				$ 11,625
New office rent amount effective Nov. 1, 2018, per square foot				22.50
Office rent amount, Nov. 1, 2019				$ 11,883
Office rent amount Nov. 1, 2019, per square foot				23.00
Cash paid to acquire Hy Biopharma intangible asset	$ 275,000
Shares issued in connection with Hy BioPharma asset purchase agreement | shares	184,912
Fair value of shares issued in connection with Hy BioPharma asset purchase	$ 3,750,000
Maximum percentage of Hy BioPharma ownership of Soligenix outstanding stock	19.90%
Accrued payment			$ 197,000
Office space | ft²				6,200
Subsequent Event [Member] | Minimum [Member]
Commitments and Contingencies (Textual)
Authorized shares to be issued to Dr. Schaber immediately prior to the completion of a transaction | shares		5,000
Subsequent Event [Member] | Maximum [Member]
Commitments and Contingencies (Textual)
Authorized shares to be issued to Dr. Schaber immediately prior to the completion of a transaction | shares		500,000