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Investment Securities: Mortgage Backed Securities Policy (Details)
12 Months Ended
Jun. 30, 2015
USD ($)
Jun. 30, 2014
USD ($)
security
Jun. 30, 2013
USD ($)
Schedule of Available-for-sale Securities [Line Items]      
Mortgage backed securities, principal payments received $ 2,338,000 $ 2,910,000 $ 3,295,000
Other-than-temporary impairments, investments $ 0 $ 0 $ 0
Private issue CMO | Available for sale      
Schedule of Available-for-sale Securities [Line Items]      
Number of investment securities held | security   99,000