XML 11 R1.htm IDEA: XBRL DOCUMENT v3.22.2
Document And Entity Information - shares
 6 Months Ended
Jun. 30, 2022
Jul. 29, 2022
Document Information [Line Items]    
Entity Central Index Key 0001132651  
Entity Registrant Name AMES NATIONAL CORPORATION  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2022  
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Jun. 30, 2022  
Document Transition Report false  
Entity File Number 0-32637  
Entity Incorporation, State or Country Code IA  
Entity Tax Identification Number 42-1039071  
Entity Address, Address Line One 405 Fifth Street  
Entity Address, City or Town Ames  
Entity Address, State or Province IA  
Entity Address, Postal Zip Code 50010  
City Area Code 515  
Local Phone Number 232-6251  
Title of 12(b) Security Common stock  
Trading Symbol ATLO  
Security Exchange Name NASDAQ  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   8,992,167