Note 5 - Loans - Credit Quality Indicators for Commercial Loans (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Sep. 30, 2016
Total Loans	$ 128,266	$ 118,443
Commercial Portfolio Segment [Member]
Total Loans	57,405	54,968
Commercial Portfolio Segment [Member] \| Pass [Member]
Total Loans	55,862	52,949
Commercial Portfolio Segment [Member] \| Substandard [Member]
Total Loans	1,149	1,725
Commercial Portfolio Segment [Member] \| Special Mention [Member]
Total Loans	394	294
Commercial Business Loans [Member] \| Commercial Portfolio Segment [Member]
Total Loans	1,445	1,138
Commercial Business Loans [Member] \| Commercial Portfolio Segment [Member] \| Pass [Member]
Total Loans	1,292	853
Commercial Business Loans [Member] \| Commercial Portfolio Segment [Member] \| Substandard [Member]
Total Loans	153	285
Real Estate Loan [Member] \| Commercial Portfolio Segment [Member]
Total Loans	20,069	20,845
Real Estate Loan [Member] \| Commercial Portfolio Segment [Member] \| Pass [Member]
Total Loans	18,937	19,405
Real Estate Loan [Member] \| Commercial Portfolio Segment [Member] \| Substandard [Member]
Total Loans	996	1,440
Real Estate Loan [Member] \| Commercial Portfolio Segment [Member] \| Special Mention [Member]
Total Loans	136
Multi Family Real Estate [Member] \| Commercial Portfolio Segment [Member]
Total Loans	32,289	28,196
Multi Family Real Estate [Member] \| Commercial Portfolio Segment [Member] \| Pass [Member]
Total Loans	32,073	27,877
Multi Family Real Estate [Member] \| Commercial Portfolio Segment [Member] \| Special Mention [Member]
Total Loans	216	219
Construction Loans [Member] \| Commercial Portfolio Segment [Member]
Total Loans	3,602	4,789
Construction Loans [Member] \| Commercial Portfolio Segment [Member] \| Pass [Member]
Total Loans	3,560	4,714
Construction Loans [Member] \| Commercial Portfolio Segment [Member] \| Special Mention [Member]
Total Loans	$ 42	$ 75

Home Bancorp Wisconsin, Inc. 10-Q