Annual report pursuant to section 13 and 15(d)

Share-based Compensation (Details Textual)

v2.4.0.6
Share-based Compensation (Details Textual) (USD $)
 12 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Apr. 30, 2010
Dec. 31, 2012
Restricted Stock [Member]
Dec. 31, 2011
Restricted Stock [Member]
Dec. 31, 2010
Restricted Stock [Member]
Dec. 31, 2012
Stock Options [Member]
Dec. 31, 2011
Stock Options [Member]
Dec. 31, 2012
Certain restricted shares [Member]
Dec. 31, 2012
Maximum [Member]
Restricted Stock [Member]
Dec. 31, 2012
Minimum [Member]
Restricted Stock [Member]
Dec. 31, 2012
2007 Stock Incentive Plan [Member]
May 27, 2011
2007 Stock Incentive Plan [Member]
Dec. 31, 2007
2007 Stock Incentive Plan [Member]
Dec. 31, 2012
Chief Executive Officer [Member]
Share Based Compensation (Textual) [Abstract]                              
Issuance of shares of common stock                           2,000,000  
Additional share issued under stock incentive plan                         3,000,000    
Availability of common shares                       400,000      
Number of shares, Granted       343,000 682,000 3,400,000                  
Shares vested immediately       100,000 100,000 1,400,000                  
Vesting period                   4 years 3 years        
Remaining number of common shares for vest           2,000,000                  
Number of common shares for vest immediately as condition of settlement agreement       500,000                      
Pre-tax total unrecognized compensation cost related to non-vested restricted shares       $ 500,000 $ 6,600,000                    
Period of recognize the Cost       4 years                      
Stock options granted 1,375,000           1,400,000 0             1,200,000
Stock-based compensation 964,000 1,185,000             900,000            
Unrecognized compensation expense   6,000,000 6,000,000                        
Reversal for previously recognized tax gross up liability expenses 400,000                            
Share based compensation related to settlement agreement 1,000,000                            
Shares forfeited as a condition of settlement       2,172,000 1,000                   2,000,000
Share Based Compensation (Additional Textual) [Abstract]                              
Expense for a tax gross-up liability, restricted share grants   200,000                          
Shares repurchased 0 200,000                          
Shares repurchased at an average price $ 2.18                            
Common stock repurchased to satisfy minimum statutory withholding on stock-based compensation (127,000) (102,000)                          
Reversal for previously recognized tax gross up liability expenses 400,000                            
Share based compensation related to settlement agreement 1,000,000                            
Previously recognized stock compensation expense $ 1,300,000