Consolidated Condensed Statements of Financial Condition (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2012		Dec. 31, 2011
Held-to-maturity securities, fair value (in dollars)	$ 595	[1]	$ 672	[1]
Allowance for loans receivable (in dollars)	26,310		33,254
Common stock, par value (in dollars per share)	$ 0.01		$ 0.01
Common stock, shares authorized	25,000,000		25,000,000
Common stock, shares issued	12,739,496		12,739,496
Common stock, shares outstanding	9,729,267		9,726,243
Accumulated other comprehensive income (loss), tax effect (in dollars)	3,156		2,153
Treasury stock, shares	3,010,229		3,013,253
Cumulative Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0.01		$ 0.01
Preferred stock, shares authorized	37,000		37,000
Preferred stock, shares issued	0		37,000
Discount of preferred stock, liquidation preference, value (in dollars)	$ 0		$ 37,231
Preferred Stock [Member]
Preferred stock, par value (in dollars per share)	$ 0.01		$ 0.01
Preferred stock, shares authorized	4,963,000		4,963,000
Preferred stock, shares issued	0		0

[1] FHLMC, FNMA, and GNMA certificates are residential mortgage-backed securities.