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RELATED-PARTY TRANSACTIONS - Transaction with TWC Shared Opportunity Fund V, L.P., a Greater than 5 percent Shareholder (Details)						1 Months Ended		6 Months Ended
	Mar. 16, 2015 shares	Jan. 20, 2015 shares	Jan. 05, 2015 shares	Jun. 03, 2013 shares	Nov. 01, 2010 shares	Aug. 07, 2015 shares	Nov. 30, 2010 shares	Jun. 30, 2015 shares	Dec. 10, 2014	May. 29, 2013
Tcw Shared Opportunity Fund
Related Party Transaction [Line Items]
Warrant exercisable period					5 years		5 years
Warrants issued					240,000		240,000
Conversion ratio									1
Tcw Shared Opportunity Fund | Class A Common Stock
Related Party Transaction [Line Items]
Maximum ownership percentage by noncontrolling owners to not be considered a bank holding company							4.99%
Maximum ownership percentage										9.99%
Shares exchanged	934	86,620	522,564	550,000
Stock outstanding								462,354
Tcw Shared Opportunity Fund | Class B Common Stock
Related Party Transaction [Line Items]
Stock outstanding								0
Common Stock | Class A Common Stock
Related Party Transaction [Line Items]
Issuance of shares of voting common stock								3,251,036
Subsequent Event | Common Stock | Class A Common Stock
Related Party Transaction [Line Items]
Issuance of shares of voting common stock						70,690
Subsequent Event | Common Stock | Class B Common Stock
Related Party Transaction [Line Items]
Issuance of shares of voting common stock						70,690

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