Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity (Tables)

v2.4.0.6
Stockholders' Equity (Tables)
6 Months Ended 12 Months Ended
Jun. 30, 2012
Dec. 31, 2011
Schedule of Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block]
    Stock Options Outstanding     Stock Options Vested  
    Weighted                    
    Average                 Weighted  
    Remaining                 Average  
    Contractual Life     Number of     Number of     Exercise  
    -Years     Awards     Awards     Price  
Exercise Prices                        
$4.50 - $8.70   6.82     871,028     680,898   $ 6.37  
$9.00 - $12.90   5.67     130,673     130,673   $ 10.45  
$13.50 - $18.90   4.03     360,529     360,529   $ 14.17  
$19.20 - $23.85   3.40     306,668     306,668   $ 22.84  
Total   5.50     1,668,898     1,478,768   $ 12.05  
    Stock Options Outstanding     Stock Options Vested  
    Weighted                    
    Average                 Weighted  
    Remaining                 Average  
    Contractual Life     Number of     Number of     Exercise  
    -Years     Awards     Awards     Price  
Exercise Prices                        
$4.50 - $8.70   7.07     871,195     542,671   $ 6.48  
$9.00 - $12.90   5.08     152,340     152,340   $ 10.51  
$13.50 -$18.90   4.26     343,862     343,862   $ 14.14  
$19.20 -$23.85   3.65     306,668     306,668   $ 22.84  
Total   5.69     1,674,065     1,345,541   $ 12.62  
Schedule of Share-based Compensation, Activity [Table Text Block]
    Shares of        
    Common        
    S tock     Amount  
             
Stock-based compensation $ 1,555   $ 3,125  
 
Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Restricted Stock Units, Vested and Expected to Vest [Table Text Block]
    Year Ended                          
    December 31,                          
    2012     2013     2014     2015     Thereafter     Total  
                                     
Scheduled vesting—restricted stock units   19,179     28,739     14,293     - -     - -     62,211  
 
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]
    2012     2011  
             
Beginning of the period   1,674,065     1,772,348  
Granted   - -     87,887  
Exercised   - -     - -  
Forfeited   (167 )   (2,833 )
Expired   (5,000 )   (183,337 )
             
End of period   1,668,898     1,674,065  
Options exercisable   1,478,768     1,345,541  
 
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]
    December 31, 2012  
       
Average risk-free interest rate   3.35%  
Average expected life- years   10  
Expected volatility   94.32%  
Expected dividends   0%  
 
Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]
          Weighted  
          Average  
          Grant  
    Number of     Date Fair  
    Units     Value  
Total awards outstanding at December 31, 2011   120,021   $ 6.14  
Units granted            
Units vested   (57,810 ) $ 6.03  
Units Cancelled/Forfeited            
Total awards outstanding at June 30, 2012   62,211   $ 6.25  
Total units vested   -        
Total units non-vested   62,211   $ 6.25  
Total units outstanding at June 30, 2012   62,211   $ 6.25