INVESTMENT SECURITIES, TRADING (Tables)
 12 Months Ended
Dec. 31, 2015
Investments, Debt and Equity Securities [Abstract]  
Investment trading securities at fair value
The following table summarizes the Company's structured notes and RMBS that are classified as investment securities, trading and carried at fair value (in thousands):
 
Amortized Cost
 
Unrealized Gains
 
Unrealized Losses
 
Fair Value
As of December 31, 2015:
 
 
 
 
 
 
 
Structured notes
$
28,576

 
$
1,674

 
$
(4,700
)
 
$
25,550

RMBS
1,896

 
—

 
(1,896
)
 
—

Total
$
30,472

 
$
1,674

 
$
(6,596
)
 
$
25,550

 
 
 
 
 
 
 
 
As of December 31, 2014:
 

 
 

 
 

 
 

Structured notes
$
22,876

 
$
1,098

 
$
(3,188
)
 
$
20,786

RMBS
1,896

 
—

 
(1,896
)
 
—

Total
$
24,772

 
$
1,098

 
$
(5,084
)
 
$
20,786