Loans (Impaired Loans By Loan Portfolio Class) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Jun. 30, 2012
Financing Receivable, Impaired [Line Items]
Impaired Loans with No Allowance: Recorded Investment	$ 2,334		$ 2,334		$ 1,794
Impaired Loans with No Allowance: Unpaid Principal Balance	2,334		2,334		1,857
Impaired Loans with No Allowance: Average Recorded Investment	2,453	672	2,409	672
Impaired Loans with No Allowance: Interest Income	48	17	70	21
Impaired Loans with Allowance: Recorded Investment	5,859		5,859		2,913
Impaired Loans with Allowance: Unpaid Principal Balance	5,909		5,909		2,913
Impaired Loans with Allowance: Related Allowance	1,166		1,166		773
Impaired Loans with Allowance: Average Recorded Investment	6,024	1,801	5,379	1,950
Impaired Loans with Allowance: Interest Income	21	22	34	44
Total Impaired Loans: Recorded Investment	8,193		8,193		4,707
Total Impaired Loans: Unpaid Principal Balance	8,243		8,243		4,770
Total Impaired Loans, Average Recorded Investment	8,477	2,473	7,788	2,622
Total Impaired Loans, Interest Income Recognized	69	39	104	65
Residential mortgage portfolio [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans with No Allowance: Recorded Investment	856		856		213
Impaired Loans with No Allowance: Unpaid Principal Balance	856		856		276
Impaired Loans with No Allowance: Average Recorded Investment	967	213	918	213
Impaired Loans with No Allowance: Interest Income	8		18
Impaired Loans with Allowance: Recorded Investment	1,960		1,960		200
Impaired Loans with Allowance: Unpaid Principal Balance	2,010		2,010		200
Impaired Loans with Allowance: Related Allowance	303		303		10
Impaired Loans with Allowance: Average Recorded Investment	2,083	46	1,538	46
Impaired Loans with Allowance: Interest Income	11	1	15	2
Total Impaired Loans: Recorded Investment	2,816		2,816		413
Total Impaired Loans: Unpaid Principal Balance	2,866		2,866		476
Total Impaired Loans, Average Recorded Investment	3,050	259	2,456	259
Total Impaired Loans, Interest Income Recognized	19	1	33	2
Nonresidential mortgage [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans with No Allowance: Recorded Investment	1,361		1,361		1,148
Impaired Loans with No Allowance: Unpaid Principal Balance	1,361		1,361		1,148
Impaired Loans with No Allowance: Average Recorded Investment	1,364	459	1,367	459
Impaired Loans with No Allowance: Interest Income	30	17	42	21
Impaired Loans with Allowance: Recorded Investment	988		988		648
Impaired Loans with Allowance: Unpaid Principal Balance	988		988		648
Impaired Loans with Allowance: Related Allowance	341		341		208
Impaired Loans with Allowance: Average Recorded Investment	988	823	927	971
Impaired Loans with Allowance: Interest Income	2	7	8	13
Total Impaired Loans: Recorded Investment	2,349		2,349		1,796
Total Impaired Loans: Unpaid Principal Balance	2,349		2,349		1,796
Total Impaired Loans, Average Recorded Investment	2,352	1,282	2,294	1,430
Total Impaired Loans, Interest Income Recognized	32	24	50	34
Commercial construction [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans with Allowance: Recorded Investment	1,066		1,066		1,075
Impaired Loans with Allowance: Unpaid Principal Balance	1,066		1,066		1,075
Impaired Loans with Allowance: Related Allowance	303		303		365
Impaired Loans with Allowance: Average Recorded Investment	1,106		1,070
Total Impaired Loans: Recorded Investment	1,066		1,066
Total Impaired Loans: Unpaid Principal Balance	1,066		1,066
Total Impaired Loans, Average Recorded Investment	1,106		1,070
Multi-family [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans with No Allowance: Recorded Investment					433
Impaired Loans with No Allowance: Unpaid Principal Balance					433
Impaired Loans with Allowance: Recorded Investment	888		888		428
Impaired Loans with Allowance: Unpaid Principal Balance	888		888		428
Impaired Loans with Allowance: Related Allowance	142		142		155
Impaired Loans with Allowance: Average Recorded Investment	889	432	885	433
Impaired Loans with Allowance: Interest Income	2	6	4	12
Total Impaired Loans: Recorded Investment	888		888		861
Total Impaired Loans: Unpaid Principal Balance	888		888		861
Total Impaired Loans, Average Recorded Investment	889	432	885	433
Total Impaired Loans, Interest Income Recognized	2	6	4	12
Home Equity Loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans with Allowance: Recorded Investment	386		386
Impaired Loans with Allowance: Unpaid Principal Balance	386		386
Impaired Loans with Allowance: Related Allowance	74		74
Impaired Loans with Allowance: Average Recorded Investment	386		386
Impaired Loans with Allowance: Interest Income	4		4
Total Impaired Loans: Recorded Investment	386		386
Total Impaired Loans: Unpaid Principal Balance	386		386
Total Impaired Loans, Average Recorded Investment	386		386
Total Impaired Loans, Interest Income Recognized	4		4
Commercial loans [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans with No Allowance: Recorded Investment	117		117
Impaired Loans with No Allowance: Unpaid Principal Balance	117		117
Impaired Loans with No Allowance: Average Recorded Investment	122		124
Impaired Loans with No Allowance: Interest Income	10		10
Impaired Loans with Allowance: Recorded Investment	571		571		562
Impaired Loans with Allowance: Unpaid Principal Balance	571		571		562
Impaired Loans with Allowance: Related Allowance	3		3		35
Impaired Loans with Allowance: Average Recorded Investment	572	500	573	500
Impaired Loans with Allowance: Interest Income	2	8	3	17
Total Impaired Loans: Recorded Investment	688		688		562
Total Impaired Loans: Unpaid Principal Balance	688		688		562
Total Impaired Loans, Average Recorded Investment	694	500	697	500
Total Impaired Loans, Interest Income Recognized	$ 12	$ 8	$ 13	$ 17