v3.26.1
Cover Page - shares
 3 Months Ended
Mar. 31, 2026
May 14, 2026
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Mar. 31, 2026  
Document Transition Report false  
Entity File Number 001-42517  
Registrant Name Northpointe Bancshares, Inc.  
Entity Incorporation, State or Country Code MI  
Entity Tax Identification Number 38-3413392  
Entity Address, Address Line One 3333 Deposit Drive Northeast  
Entity Address, City or Town Grand Rapids  
Entity Address, State or Province MI  
Entity Address, Postal Zip Code 49546  
City Area Code 616  
Local Phone Number 940-9400  
Title of 12(b) Security Common stock, no par value  
Trading Symbol NPB  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   34,581,842
Entity Central Index Key 0001336706  
Amendment Flag false  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2026  
Current Fiscal Year End Date --12-31