XML 37 R27.htm IDEA: XBRL DOCUMENT v3.8.0.1
Note 7 - Stockholders' Equity - Stock Option Activity (Details) - $ / shares
shares in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2017
Dec. 31, 2016
Number of shares outstanding (in shares) 11,845  
Number of shares outstanding, weighted average exercise price (in dollars per share) $ 14.44  
Number of shares outstanding, weighted average remaining contractual term (Year) 7 years 116 days 7 years 219 days
Number of shares granted (in shares) 1,218  
Number of shares granted, weighted average exercise price (in dollars per share) $ 14.45  
Number of shares exercised (in shares) (952)  
Number of shares exercised, weighted average exercise price (in dollars per share) $ 8.23  
Number of shares expired and forfeited (in shares) (913)  
Number of shares expired and forfeited, weighted average exercise price (in dollars per share) $ 19.53  
Number of shares outstanding (in shares) 11,198 11,845
Number of shares outstanding, weighted average exercise price (in dollars per share) $ 14.56 $ 14.44