Summary of significant accounting policies (Details) (USD $)	12 Months Ended
	Jun. 30, 2014 Office	Jun. 30, 2013
Summary of significant accounting policies [Abstract]
Number of Offices	12
Interest-bearing Deposits in Banks and Other Financial Institutions	$ 4,800,000	$ 809,000
Percentantage of stock authorized for repurchase (in hundredths)	5.00%
Maximum shares authorized for repurchase (in shares)	92,346
Total number of shares repurchased under the plan (in shares)	62,478
Number of shares repurchased during the period (in shares)	0	0
Advertising Expense	$ 278,000	$ 369,000
Building and improvements [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	39 years
Furniture and equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Furniture and equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	8 years