Consolidated Statements of Financial Condition (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Mortgage-backed securities, fair value option (in Dollars)	$ 4,678	$ 7,119
Mortgage-backed securities, assets pledged (in Dollars)	464,626	556,520
Other securities, fair value option (in Dollars)	27,915	30,163
Other securities, assets pledged (in Dollars)	57,562
Borrowed funds, fair value option (in Dollars)	$ 28,771	$ 29,570
Preferred stock, par value (in Dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Common stock, par value (in Dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	31,530,595	31,530,595
Common stock, shares outstanding	29,403,823	30,123,252
Treasury stock, shares	2,126,772	1,407,343