Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation (Details Textual)

v2.4.0.6
Stock Based Compensation (Details Textual)
6 Months Ended
Jun. 30, 2012
May 25, 2012
Jun. 30, 2012
Performance based awards [Member]
Jun. 30, 2012
Maximum [Member]
Jun. 30, 2012
Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Vesting period for non-vested stock awards and stock options     3 years 5 years 3 years
Stock Based Compensation (Textual) [Abstract]          
Increase in available shares from approved Plan amendment   1,200,000      
Remaining shares available for grant 1,424,063        
Shares of common stock authorized under stock compensation plan 8,950,000