v3.25.1
Cover - shares
 3 Months Ended
Mar. 31, 2025
May 09, 2025
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Entity Interactive Data Current Yes  
Amendment Flag false  
Document Period End Date Mar. 31, 2025  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q1  
Entity Information [Line Items]    
Entity Registrant Name IT TECH PACKAGING, INC.  
Entity Central Index Key 0001358190  
Entity File Number 001-34577  
Entity Tax Identification Number 20-4158835  
Entity Incorporation, State or Country Code NV  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status Yes  
Entity Shell Company false  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Contact Personnel [Line Items]    
Entity Address, Address Line One Science Park  
Entity Address, Address Line Two Juli Rd  
Entity Address, Address Line Three Xushui District  
Entity Address, City or Town Baoding City  
Entity Address, Country CN  
Entity Address, Postal Zip Code 072550  
Entity Phone Fax Numbers [Line Items]    
City Area Code (86)  
Local Phone Number 312-8698215  
Entity Listings [Line Items]    
Title of 12(b) Security Common Stock, par value $0.001  
Trading Symbol ITP  
Security Exchange Name NYSEAMER  
Entity Common Stock, Shares Outstanding   10,065,920