Quarterly report pursuant to Section 13 or 15(d)

Stock Based Compensation and Restricted Stock Compensation (Details)

v3.5.0.2
Stock Based Compensation and Restricted Stock Compensation (Details) - USD ($)
 3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Share-based and Restricted Stock Compensation Expense [Abstract]        
Stock-based compensation expense included in operating expense     $ 2,977,000 $ 1,128,000
Directors and Employees [Member]        
Share-based Arrangements Awards Granted [Abstract]        
Stock options granted (in shares) 0 1,350,000 0 1,360,000
Stock Options [Member]        
Share-based and Restricted Stock Compensation Expense [Abstract]        
Stock-based compensation expense included in operating expense $ 1,385,000 $ 904,000 $ 2,977,000 $ 1,128,000
Share-based Arrangements Awards Granted [Abstract]        
Stock options granted (in shares) 125,000 1,695,000 1,440,000 1,815,000
Restricted Stock [Member]        
Share-based and Restricted Stock Compensation Expense [Abstract]        
Stock-based compensation expense included in operating expense $ 987,000 $ 1,036,000 $ 2,879,000 $ 1,068,000
Research and Development [Member] | Stock Options [Member]        
Share-based and Restricted Stock Compensation Expense [Abstract]        
Stock-based compensation expense included in operating expense 314,000 86,000 664,000 104,000
Research and Development [Member] | Restricted Stock [Member]        
Share-based and Restricted Stock Compensation Expense [Abstract]        
Stock-based compensation expense included in operating expense 62,000 75,000 200,000 91,000
Selling, General and Administrative [Member] | Stock Options [Member]        
Share-based and Restricted Stock Compensation Expense [Abstract]        
Stock-based compensation expense included in operating expense 1,071,000 818,000 2,313,000 1,024,000
Selling, General and Administrative [Member] | Restricted Stock [Member]        
Share-based and Restricted Stock Compensation Expense [Abstract]        
Stock-based compensation expense included in operating expense $ 925,000 $ 961,000 $ 2,679,000 $ 977,000