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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Amounts used in computing EPS (Tables)
 12 Months Ended
Dec. 31, 2013
Accounting Policies [Abstract]  
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
The following data represents the amounts used in computing EPS and the effect on net income and the weighted average number of shares of dilutive potential common stock:
    
 
 
 
Year ended December 31,
 
 
2011
 
2012
 
2013
Net income available to common stockholders
 
$
35,409

 
$
(16,711
)
 
$
(29,714
)
 
 
 
 
 
 
 
Weighted average shares outstanding:
 
 
 
 
 
 
 -Basic
 
17,462

 
17,891

 
18,916

Add: Warrants
 
26

 
—

 
—

Add: Stock options
 
255

 
—

 
—

 -Diluted
 
17,743

 
17,891

 
18,916

 
 
 
 
 
 
 
Basic net income per share
 
$
2.03

 
$
(0.93
)
 
$
(1.57
)
Diluted net income per share
 
$
1.99

 
$
(0.93
)
 
$
(1.57
)