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Investment Securities: (Tables)
3 Months Ended
Mar. 31, 2012
Investment Securities [Abstract]  
Available-for-sale Securities [Table Text Block]
The investment securities consist of the following at March 31, 2012 and December 31, 2011:

 
March 31, 2012
 
December 31, 2011
Federal tax-exempt debt securities
$
40,402

 
$
39,745

Corporate bonds
13,176

 
13,263

Sovereign bonds
1,973

 
1,928

Certificates of deposit
5,931

 
5,459

 
$
61,482

 
$
60,395