v3.25.2
Document And Entity Information - shares
 6 Months Ended
Jun. 30, 2025
Jul. 31, 2025
Document Information [Line Items]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2025  
Document Transition Report false  
Entity File Number 001-35929  
Entity Registrant Name National Research Corporation  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 47-0634000  
Entity Address, Address Line One 1245 Q Street  
Entity Address, City or Town Lincoln  
Entity Address, State or Province NE  
Entity Address, Postal Zip Code 68508  
City Area Code 402  
Local Phone Number 475-2525  
Title of 12(b) Security Common Stock, $.001 par value  
Trading Symbol NRC  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding (in shares)   23,063,517
Entity Central Index Key 0000070487  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q2  
Amendment Flag false