Organization Organization Text Tags (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended			6 Months Ended			12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016		Sep. 30, 2017	Sep. 30, 2016		Mar. 31, 2003	Mar. 31, 2017	Sep. 17, 2003	Oct. 24, 1994
Interest income	$ 6,339	$ 6,326	[1]	$ 12,510	$ 13,246	[2]
Non-interest expense	6,786	6,771	[3]	13,439	13,411	[4]
Interest expense	1,252	1,223	[1]	2,470	2,485	[5]
Non-interest income	$ 1,139	1,257	[1]	$ 2,348	2,397	[2]
Common Stock, Shares Issued (in shares)	3,698,031			3,698,031				3,698,031		2,314,375
Common Stock, Par Value (in dollars per share)	$ 0.01			$ 0.01				$ 0.01		$ 0.01
subordinated debt issued shares									13,000
Liquidation amount subordinated debt (in dollars per share)									$ 1,000
Proceeds from Issuance of Long-term Debt							$ 13,000
Proceeds from (Payments for) Other Financing Activities							400
Payments for Repurchase of Trust Preferred Securities							$ 13,400
Debt Instrument, Basis Spread on Variable Rate				3.05%
Restatement Adjustment
Interest income		42			56
Non-interest expense		198			251
Interest expense		178			157
Non-interest income		$ 21			$ 44

[1] (1) September 30, 2016 balances have been restated from previously reported results to correct for material and certain other errors from prior periods. Refer to Note 1 for further detail.

[2] (1) September 30, 2016 balances have been restated from previously reported results to correct for material and certain other errors from prior periods. Refer to Note 1 for further detail.

[3] (1) September 30, 2016 balances have been restated from previously reported results to correct for material and certain other errors from prior periods. Refer to Note 1 for further detail.

[4] (1) September 30, 2016 balances have been restated from previously reported results to correct for material and certain other errors from prior periods. Refer to Note 1 for further detail.

[5] (1) September 30, 2016 balances have been restated from previously reported results to correct for material and certain other errors from prior periods. Refer to Note 1 for further detail.