Stock Based Compensation (Tables)
 12 Months Ended
Dec. 31, 2013
Stock Based Compensation [Abstract]  
Estimated fair value of options granted
Assumptions are used in estimating the fair value of stock options granted.  The weighted average expected life of the stock options represent the period of time that the options are expected to be outstanding and is based on the SEC simplified approach to calculating expected term.  The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant.  The expected volatility is based on the actual volatility of Waterstone Financial, Inc. stock from the original date of issue, October 4, 2005.  The following assumptions were used in estimating the fair value of options granted in the year ended 2012.  There were no options granted during the years ended December 31, 2013 or 2011.
 
 
 
2012
 
Dividend Yield
  
0.00
%
Risk-free interest rate
  
0.25
%
Expected volatility
  
74.53
%
Weighted average expected life
 
6.5 years
 
Weighted average per share value of options
 
$
1.25
 
 
Stock option activity
A summary of the Company's stock option activity for the years ended December 31, 2013, 2012 and 2011 is presented below.

Stock Options
 
Shares
  
Weighted Average
Exercise Price
  
Weighted Average
Years Remaining in
Contractual Term
  
Aggregate
Intrinsic Value
(000's)
 
Outstanding December 31, 2010
  
880,583
  
$
14.99
   
6.34
   
-
 
Options exercisable at December 31, 2010
  
489,944
   
15.99
   
6.04
   
-
 
 
                
Granted
  
-
   
-
       
-
 
Exercised
  
-
   
-
       
-
 
Forfeited
  
(10,973
)
  
15.64
       
-
 
Outstanding December 31, 2011
  
869,610
   
14.88
   
5.37
   
-
 
Options exercisable at December 31, 2011
  
657,282
   
15.75
   
5.12
   
-
 
 
                
Granted
  
279,811
   
1.85
       
-
 
Exercised
  
(3,291
)
  
4.24
       
9
 
Forfeited
  
(26,335
)
  
8.14
       
(72
)
Outstanding December 31, 2012
  
1,119,795
   
11.95
   
5.69
   
1,622
 
Options exercisable at December 31, 2012
  
816,939
   
15.12
   
4.31
   
80
 
 
                
Granted
  
-
   
-
       
-
 
Exercised
  
(1,097
)
  
1.72
       
(9
)
Forfeited
  
(19,751
)
  
4.63
       
(112
)
Outstanding December 31, 2013
  
1,098,947
   
12.11
   
4.18
   
2,744
 
Options exercisable at December 31, 2013
  
870,707
   
14.23
   
3.28
   
636
 
 
Summary of nonvested stock option activity
The following table summarizes information about the Company's nonvested stock option activity for the years ended December 31, 2013 and 2012:
 
Stock Options
 
Shares
  
Weighted Average
Grant Date Fair Value
 
 
 
  
 
Nonvested at December 31, 2011
  
212,327
  
$
4.84
 
Granted
  
279,811
   
1.22
 
Vested
  
(173,922
)
  
5.27
 
Forfeited
  
(15,362
)
  
1.21
 
Nonvested at December 31, 2012
  
302,854
   
1.35
 
 
        
Nonvested at December 31, 2012
  
302,854
  
$
1.35
 
Granted
  
-
   
-
 
Vested
  
(62,546
)
  
1.41
 
Forfeited
  
(12,070
)
  
1.36
 
Nonvested at December 31, 2013
  
228,238
   
1.33
 
Summary of restricted stock shares activity
The following table summarizes information about the Company's restricted stock shares activity for the years ended December 31, 2013 and 2012:
 
Restricted Stock
 
Shares
  
Weighted Average
Grant Date Fair Value
 
Nonvested at December 31, 2011
  
57,279
  
$
15.14
 
Granted
  
109,730
   
1.72
 
Vested
  
(53,987
)
  
15.71
 
Forfeited
  
(2,195
)
  
4.24
 
Nonvested at December 31, 2012
  
110,827
   
1.79
 
 
        
Nonvested at December 31, 2012
  
110,827
   
1.79
 
Granted
  
-
   
-
 
Vested
  
(23,043
)
  
2.09
 
Forfeited
  
-
   
-
 
Nonvested at December 31, 2013
  
87,784
   
1.72