Pieris Pharmaceuticals, Inc. Annual report [Section 13 and 15(d), not S-K Item 405]

Annual report [Section 13 and 15(d), not S-K Item 405]

Cover
- Document And Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Convertible Notes Payable - Additional Information (Details)

v3.25.1

Convertible Notes Payable - Additional Information (Details) - USD ($)		12 Months Ended
	Dec. 13, 2024	Dec. 31, 2024
Common Stock [Member]
Debt Instrument [Line Items]
Conversion of stock, shares converted	1,179,163
Prefund Warrants [Member]
Debt Instrument [Line Items]
Conversion of stock, shares converted	168,503
Convertible Notes [Member]
Debt Instrument [Line Items]
Debt instrument maturity date		Jun. 06, 2027
Interest rate		2.00%
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]		Secured Overnight Financing Rate (SOFR) [Member]
Proceeds from issuance of convertible preferred stock		$ 20,000,000
Aggregate principal amount		18,400,000
Accrued interest		$ 400,000
Convertible Notes [Member] \| Common Stock [Member]
Debt Instrument [Line Items]
Conversion of stock, shares converted		1,179,163
Convertible Notes [Member] \| Prefund Warrants [Member]
Debt Instrument [Line Items]
Conversion of stock, shares converted		168,503

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