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Stock-Based Compensation Arrangements (Tables)
12 Months Ended
Dec. 31, 2013
Stock-Based Compensation Arrangements  
Schedule of stock based compensation expense

 
Year ended
December 31,
2011
    Year ended
December 31,
2012
    Year ended
December 31,
2013
 
                   
Research and development   $ 171     $ 71     $ 75  
General and administrative     669       266       282  
Net (loss) income from discontinued operations     42       43        
Stock-based compensation costs before income taxes   $ 882     $ 380     $ 357  
Schedule of stock option activity
 
    Number of
Options
Outstanding
    Weighted
Average
Exercise
Price Per Share
    Weighted
Average
Remaining
Contractual
Term (Years)
    Aggregate
Intrinsic
Value ($000s)
 
Options outstanding at December 31, 2011     502,249     $ 26.11       6.44     $ 140  
Granted     33,571     $ 3.29                  
Exercised     (33,351 )   $ 3.09                  
Cancelled/forfeited     (39,446 )   $ 20.21                  
Options outstanding at December 31, 2012     463,023     $ 26.61       5.58     $ 347  
Granted     494,663     $ 4.22                  
Exercised                              
Cancelled/forfeited     (8,001 )   $ 18.55                  
Options outstanding at December 31, 2013     949,685     $ 15.02       7.38     $ 152  
Unvested at December 31, 2013     528,754     $ 4.49       9.76     $ 50  
Vested and exercisable at December 31, 2013     420,931     $ 28.25       4.40     $ 101  
Schedule of assumptions for stock option grants to employees and directors
 
    Year ended
December 31,
2011
  Year ended
December 31,
2012
  Year ended
December 31,
2013
Expected term (years)   5 — 6   6   5 —6
Risk free interest rate   1.47 — 2.29%   0.95%   0.84% - 1.865%
Volatility    93 — 99%   98%   97—108%
Expected dividend yield over expected term   0.00%   0.00%   0.00%
Resulting weighted average grant date fair value   $8.05   $2.52   $3.25

 

Schedule of restricted stock units activity

 
Restricted Stock
Units
    Weighted Average
Grant
Date Value Per Share
 
Non-vested at December 31, 2011     36,463     $ 5.60  
Granted     12,281     $ 3.85  
Forfeited     (6,904 )   $ 4.99  
Vested     (2,463 )   $ 3.08  
Non-vested at December 31, 2012     39,377     $ 5.34  
Granted     85,097     $ 5.71  
Forfeited     (5,226 )   $ 5.00  
Non-vested at December 31, 2013     119,248     $ 5.62