Capital Capital (Details) (Provident Bank Mortgage (PBM), USD $)	12 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2011
Provident Bank Mortgage (PBM)
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Cash dividends declared	$ 10,000,000	$ 8,000,000	$ 0
Tier 1 Leverage Capital, Actual, Amount	158,737,000	141,831,000
Tier 1 Risk-Based Capital, Actual, Amount	158,737,000	141,831,000
Total Risk-Based Capital, Actual, Amount	168,201,000	152,087,000
Tier 1 Leverage Capital, Actual, Ratio	13.12%	11.26%
Tier 1 Risk-Based Capital, Actual, Ratio	21.36%	17.53%
Total Risk-Based Capital, Actual, Ratio	22.64%	18.79%
Tier 1 Leverage Capital, For Capital Adequacy Purposes, Amount	48,408,000	50,400,000
Total Risk-Based Capital, For Capital Adequacy Purposes, Amount	59,442,000	64,740,000
Tier 1 Leverage Capital, For Capital Adequacy Purposes, Ratio (greater than or equal to)	4.00%	4.00%
Total Risk-Based Capital, For Capital Adequacy Purposes, Ratio (greater than or equal to)	8.00%	8.00%
Tier 1 Leverage Capital, To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	60,510,000	63,000,000
Tier 1 Risk-Based Capital, To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	44,582,000	48,555,000
Total Risk-Based Capital, To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount	$ 74,303,000	$ 80,925,000
Tier 1 Leverage Capital, To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (greater than or equal to)	5.00%	5.00%
Tier 1 Risk-Based Capital, To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (greater than or equal to)	6.00%	6.00%
Total Risk-Based Capital, To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio (greater than or equal to)	10.00%	10.00%