Quarterly report pursuant to Section 13 or 15(d)

Document And Entity Information

v3.19.3
Document And Entity Information - shares
9 Months Ended
Sep. 30, 2019
Oct. 28, 2019
Document Information [Line Items]    
Entity Registrant Name NORTHWEST INDIANA BANCORP  
Entity Central Index Key 0000919864  
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 Common Stock, Shares Outstanding (in shares)   3,451,797
Entity Shell Company false  
Document Type 10-Q  
Document Period End Date Sep. 30, 2019  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q3  
Amendment Flag false