Consolidated Condensed Statements of Financial Condition (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Held-to-maturity, fair value (in dollars)	$ 300	$ 308	[1]
Loans receivable, allowance (in dollars)	25,302	24,766
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	12,725,388	12,735,313
Common stock, shares outstanding	9,248,040	9,234,534
Accumulated other comprehensive income, tax effect (in dollars)	$ 2,741	$ 2,214
Treasury stock, shares	3,477,348	3,500,779
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
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	0

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