Consolidated Statements Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net income	$ 3,678	$ 9,993
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization of deferred loan origination fees	439	168
Net amortization of premiums and discounts on securities	328	412
Net amortization on mortgage servicing rights	22	29
Amortization of debt issuance costs	14	13
Depreciation and amortization of office properties and equipment	863	862
Provision for loan losses	3,400	0
Loss (gain) on securities transactions, net	60	(411)
Gain on sale of loans receivable, net	0	(409)
Loss on real estate owned, net	0	12
Deferred tax expense	3,363	13,608
Increase in accrued interest receivable	(1,228)	(902)
Increase in cash surrender value of bank-owned life insurance	(1,089)	(1,087)
Increase in other assets	(11,429)	(13,251)
Increase in accrued expenses and other liabilities	3,905	839
Net cash provided by operating activities	2,326	9,876
Cash flows from investing activities:
Proceeds from sales of securities available-for-sale	92	58,047
Proceeds from principal pay downs / maturities on securities available-for-sale	7,009	17,228
Proceeds from principal pay downs / maturities on securities held-to-maturity	1,845	0
Purchases of securities available-for-sale	(163,721)	(13,282)
Purchases of securities held-to-maturity	(108,640)	0
Proceeds from sales of loans receivable	0	27,333
Purchases of loans receivables	(56,095)	(9,414)
Loan originations, net of principal payments	(41,157)	(177,257)
Proceeds of Federal Home Loan Bank Stock	6,476	7,758
Purchases of Federal Home Loan Bank Stock	(15,296)	(10,089)
Additions to office properties and equipment	(2,648)	(918)
Proceeds from sales of real estate owned	0	337
Net cash used in investing activities	(372,135)	(100,257)
Cash flows from financing activities:
Net increase in deposits	139,887	48,683
Payments for maturities, calls, and payoffs on long-term borrowings	(90,000)	(40,000)
Increase in short-term borrowings	286,000	81,800
Decrease in advance payments by borrowers for taxes and insurance	(1,555)	(5,235)
Net cash provided by financing activities	334,332	85,248
Net decrease in cash and cash equivalents	(35,477)	(5,133)
Cash and cash equivalents at beginning of year	100,975	45,694
Cash and cash equivalents at end of year	65,498	40,561
Cash paid during the period for:
Interest	11,484	9,952
Income tax payments, net	1,393	6,297
Noncash investing and financing activities:
Transfer of loans receivable to real estate owned	$ 566	$ 23