LOANS RECEIVABLE, NET, Asset Classification of Loans (Details) - USD ($) $ in Thousands	Sep. 30, 2015	Sep. 30, 2014
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	$ 713,087	$ 499,201
Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	666,177	482,437
Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	30,125	2,000
Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	4,901	1,900
Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	11,884	12,864
Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
1-4 Family Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	125,021	116,395
1-4 Family Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	124,775	115,700
1-4 Family Real Estate [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	212	369
1-4 Family Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	10	81
1-4 Family Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	24	245
1-4 Family Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Commercial and Multi-Family Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	310,199	224,302
Commercial and Multi-Family Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	307,876	222,074
Commercial and Multi-Family Real Estate [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	1,419	852
Commercial and Multi-Family Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	96
Commercial and Multi-Family Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	904	1,280
Commercial and Multi-Family Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Agricultural Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	64,316	56,071
Agricultural Real Estate [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	35,106	52,364
Agricultural Real Estate [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	26,703	273
Agricultural Real Estate [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	877	1,660
Agricultural Real Estate [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	1,630	1,774
Agricultural Real Estate [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	33,527	29,329
Consumer [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	33,527	29,329
Consumer [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Consumer [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Consumer [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Consumer [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Commercial Operating [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	29,893	30,846
Commercial Operating [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	29,052	30,709
Commercial Operating [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	712	137
Commercial Operating [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Commercial Operating [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	129	0
Commercial Operating [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Agricultural Operating [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	43,626	42,258
Agricultural Operating [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	29,336	32,261
Agricultural Operating [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	1,079	369
Agricultural Operating [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	4,014	63
Agricultural Operating [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	9,197	9,565
Agricultural Operating [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Premium Finance [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	106,505	0
Premium Finance [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	106,505	0
Premium Finance [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Premium Finance [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Premium Finance [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	0	0
Premium Finance [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Loans receivable	$ 0	$ 0