DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS (Carrying Value And Estimated Fair Value Of Financial Instruments) (Detail) - USD ($) $ in Thousands	Sep. 30, 2016	Sep. 30, 2015
Financial assets:
Cash and due from banks	$ 11,449	$ 9,884
Interest-bearing deposits with banks	17,893	15,110
Interest-bearing time deposits	3,100	3,100
Trading account securities	9,255	9,044
Securities available for sale	174,493	178,328
Securities held to maturity	3,166	4,620
Loans, net	518,611	457,112
Loans held for sale	5,471	6,803
FRB and FHLB stock	6,936	6,720
Accrued interest receivable	2,806	2,655
Investment in historic tax credit entity (included in other assets)		4,169
Loan servicing rights (included in other assets)	310	0
Financial liabilities:
Deposits	579,467	533,297
Short-term repurchase agreements	1,345	1,342
Borrowings from FHLB	121,633	104,867
Other long-term debt	0	4,632
Accrued interest payable	195	186
Advance payments by borrowers for taxes and insurance	1,014	883
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 1 [Member]
Financial assets:
Cash and due from banks	11,449	9,884
Interest-bearing deposits with banks	17,893	15,110
Interest-bearing time deposits	0	0
Trading account securities	0	0
Securities available for sale	0	0
Securities held to maturity	0	0
Loans, net	0	0
Loans held for sale	0	0
FRB and FHLB stock	0	0
Accrued interest receivable	0	0
Investment in historic tax credit entity (included in other assets)		0
Loan servicing rights (included in other assets)	0
Financial liabilities:
Deposits	0	0
Short-term repurchase agreements	0	0
Borrowings from FHLB	0	0
Other long-term debt		0
Accrued interest payable	0	0
Advance payments by borrowers for taxes and insurance	0	0
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 2 [Member]
Financial assets:
Cash and due from banks	0	0
Interest-bearing deposits with banks	0	0
Interest-bearing time deposits	3,114	3,099
Trading account securities	9,255	9,044
Securities available for sale	174,493	178,328
Securities held to maturity	3,654	5,191
Loans, net	0	0
Loans held for sale	5,471	6,803
FRB and FHLB stock	6,936	6,720
Accrued interest receivable	2,806	2,655
Investment in historic tax credit entity (included in other assets)		4,169
Loan servicing rights (included in other assets)	0
Financial liabilities:
Deposits	0	0
Short-term repurchase agreements	1,345	1,342
Borrowings from FHLB	123,794	106,446
Other long-term debt		4,632
Accrued interest payable	195	186
Advance payments by borrowers for taxes and insurance	1,014	883
Estimate of Fair Value Measurement [Member] | Fair Value, Inputs, Level 3 [Member]
Financial assets:
Cash and due from banks	0	0
Interest-bearing deposits with banks	0	0
Interest-bearing time deposits	0	0
Trading account securities	0	0
Securities available for sale	0	0
Securities held to maturity	0	0
Loans, net	522,560	456,331
Loans held for sale	0	0
FRB and FHLB stock	0	0
Accrued interest receivable	0	0
Investment in historic tax credit entity (included in other assets)		0
Loan servicing rights (included in other assets)	310
Financial liabilities:
Deposits	581,844	536,121
Short-term repurchase agreements	0	0
Borrowings from FHLB	0	0
Other long-term debt		0
Accrued interest payable	0	0
Advance payments by borrowers for taxes and insurance	$ 0	$ 0