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Price of a single share of a number of saleable stocks of a company.

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The number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

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Stockholders' Equity (Details) - USD ($)				1 Months Ended	3 Months Ended		6 Months Ended		12 Months Ended
Stockholders' Equity (Details) - USD ($)	Aug. 07, 2017	Jul. 17, 2017	Jun. 14, 2017	Jun. 06, 2017	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016	May 05, 2017	May 04, 2017
Class of Stock [Line Items]
Number of shares tendered and not properly withdrawn (in shares)				2,858,425
Tendered shares as percent of shares outstanding											6.20%
Dividends declared (in dollars per share)			$ 0.25		$ 0.25	$ 0	$ 0.25	$ 0
Dividends payable					$ 5,268,000		$ 5,268,000		$ 0
Net operating losses and tax credits									$ 113,000,000
Subsequent Event
Class of Stock [Line Items]
Dividends declared (in dollars per share)	$ 0.25
Dividends paid		$ 5,200,000
Common Stock
Class of Stock [Line Items]
Shares acquired (in shares)				1,370,891
Cost per share (in dollars per shares)				$ 9.40
Treasury stock acquired				$ 12,900,000
Additional tendered shares acquires (in shares)				445,891
Common Stock \| Manager of a Financial Institution
Class of Stock [Line Items]
Shares acquired (in shares)				70,178
Maximum
Class of Stock [Line Items]
Number of shares authorized to be repurchased (in shares)										925,000
Share price (in dollars per shares)										$ 10.8
Authorized amount										$ 9,990,000
Additional authorized amount (percent)										2.00%
Requirement to own shares outstanding as percent				4.99%
Maximum \| Manager of a Financial Institution
Class of Stock [Line Items]
Requirement to own shares outstanding as percent				4.99%
Minimum
Class of Stock [Line Items]
Share price (in dollars per shares)										$ 9.4