Annual report pursuant to Section 13 and 15(d)

Stock Plans (Details)

v3.19.1
Stock Plans (Details) - $ / shares
shares in Thousands
 12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of Options and Awards Outstanding at Beginning of Period 455    
Options granted (245)    
Options expired (3)    
Number of Options and Awards Outstanding at End of Period 665 455  
Weighted Average Exercise Price, Outstanding at Beginning of Period $ 25,910 $ 34,020 $ 34,980
Weighted Average Exercise Price, Increase in shares reserved 0   0
Weighted Average Exercise Price, Options granted 4,230 15,300 30,600
Weighted Average Exercise Price, Options cancelled and forfeited 23,310 31,620  
Weighted Average Exercise Price,Options exercised     20,220
Weighted Average Exercise Price, Options expired 50,160 78,660 65,100
Weighted Average Exercise Price, Outstanding at End of Period $ 17,940 $ 25,910 $ 34,020
Employee Stock Option [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Number of Options and Awards Outstanding at Beginning of Period 455 334 314
Number of Options and Awards Outstanding, Increase in shares reserved 0   0
Options granted 245 158 28
Options cancelled and forfeited (32) (19)  
Options exercised     (1)
Options expired (3) (18) (7)
Number of Options and Awards Outstanding at End of Period 665 455 334
Stock Awards [Member]      
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Shares or Awards Available For Grant, Balance at Beginning of Period 166 314 152
Shares or Awards Available For Grant, Increase in shares reserved 167   190
Options granted (245) (158) (28)
Options cancelled and forfeited 16 10  
Options exercised     0
Options expired 0 0 0
Shares or Awards Available For Grant, Balance at End of Period 104 166 314