XML 78 R99.htm IDEA: XBRL DOCUMENT v3.20.1
Stock-based compensation - Stock option activity (Details)
12 Months Ended
Dec. 31, 2019
USD ($)
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Outstanding at the beginning of period -Options | shares 10,830
Granted - Options | shares 9,868
Exercised - Options | shares (1,566)
Forfeited/expired - Options | shares (8,482)
Outstanding at the ending of period -Options | shares 10,650
Outstanding-Weighted Average Exercise Price at the beginning of period - Options | $ / shares $ 12.69
Granted-Weighted Average Exercise Price | $ / shares 11.19
Exercised-Weighted Average Exercise Price | $ / shares 10.10
Forfeited/expired-Weighted Average Exercise Price | $ / shares 10.93
Outstanding-Weighted Average Exercise Price at the ending of period - Options | $ / shares $ 13.08
Outstanding-Weighted Average Remaining Contractual Life (Years) 2 years 15 days
Outstanding-Aggregate Intrinsic Value | $ $ 34,287