Quarterly report pursuant to Section 13 or 15(d)

Document And Entity Information

v3.20.1
Document And Entity Information - shares
3 Months Ended
Mar. 31, 2020
May 05, 2020
Document Information [Line Items]    
Entity Registrant Name NORTHWEST INDIANA BANCORP  
Entity Central Index Key 0000919864  
Trading Symbol nwin  
Current Fiscal Year End Date --12-31  
Entity Filer Category Accelerated Filer  
Entity Current Reporting Status Yes  
Entity Emerging Growth Company false  
Entity Small Business true  
Entity Interactive Data Current Yes  
Entity Common Stock, Shares Outstanding (in shares)   3,463,136
Entity Shell Company false  
Document Type 10-Q  
Document Period End Date Mar. 31, 2020  
Document Fiscal Year Focus 2020  
Document Fiscal Period Focus Q1  
Amendment Flag false  
Title of 12(g) Security Common Stock, without par value