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STOCKHOLDERS' EQUITY: (Tables)
 12 Months Ended
Dec. 31, 2012
Stockholders' Equity Note [Abstract]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

These fair values were derived using the BSM with the following weighted-average assumptions:

 

     For the Years Ended December 31,  
    2012     2011     2010  
                   
Average risk-free interest rate     0.62 %     2.23 %     3.28 %
Expected dividend yield     0.00 %     0.00 %     0.00 %
Expected lives     6.00 years       6.00 years       6.25 years  
Expected volatility     127.5 %     120.7 %     111.3 %
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

Transactions and other information relating to stock options for the years December 31, 2012, 2011 and 2010 are summarized below:

 

    Number
of 
Options		     Weighted-
Average
Exercise
Price		     Weighted-
Average
Remaining
Contractual
Term (In
Years)		       
Aggregate
Intrinsic
Value		  
Outstanding at December 31, 2009     5,365,000     $ 9.64       —       —  
Grants     39,000     $ 3.17                  
Exercised     —     $ —                  
Forfeited/cancelled/expired     (405,000 )   $ 11.57                  
Outstanding at December 31, 2010     4,999,000     $ 9.40       —       —  
Grants     182,000     $ 1.38                  
Exercised     —     $ —                  
Forfeited/cancelled/expired     (370,000 )   $ 16.57                  
Outstanding at December 31, 2011     4,811,000     $ 8.60       —     —  
Grants     151,000     $ 0.83                  
Exercised     —     $ —                  
Forfeited/cancelled/expired     (332,000 )   $ 11.05                  
Outstanding at December 31, 2012     4,630,000     $ 8.17       3.77     $ —  
Vested and expected to vest at December 31, 2012     4,612,000     $ 8.20       3.75     $ —  
Unvested at December 31, 2012     184,000     $ 1.02       9.25     $ —  
Exercisable at December 31, 2012     4,446,000     $ 8.47       3.55     $ —
Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

Transactions and other information relating to restricted stock grants for the years ended December 31, 2012, 2011 and 2010 are summarized below:

 

    Shares     Average 
Fair 
Value at 
Grant 
Date		  
Unvested at December 31, 2009     393,000     $ 1.94  
Grants     3,375,000     $ 3.09  
Vested     (1,226,000 )   $ 3.01  
Forfeited/cancelled/expired     (232,000 )   $ 3.23  
Unvested at December 31, 2010     2,310,000     $ 2.92  
Grants     60,000     $ 1.19  
Vested     (2,203,000 )   $ 2.99  
Forfeited/cancelled/expired     (23,000 )   $ 3.17  
Unvested at December 31, 2011     144,000     $ 1.10  
Grants     —     $ —  
Vested     (62,000 )   $ 1.09  
Forfeited/cancelled/expired     —     $ —  
Unvested at December 31, 2012     82,000     $ 1.11