XML 106 R91.htm IDEA: XBRL DOCUMENT v3.21.1
Stock-based compensation - Stock option activity (Details)
12 Months Ended
Dec. 31, 2020
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Outstanding at the beginning of period -Options | shares 10,650
Granted - Options | shares 8,223
Exercised - Options | shares (835)
Forfeited/expired - Options | shares (8,008)
Outstanding at the ending of period -Options | shares 10,030
Outstanding-Weighted Average Exercise Price at the beginning of period - Options | $ / shares $ 13.08
Granted-Weighted Average Exercise Price | $ / shares 10.67
Exercised-Weighted Average Exercise Price | $ / shares 10.10
Forfeited/expired-Weighted Average Exercise Price | $ / shares 11.04
Outstanding-Weighted Average Exercise Price at the ending of period - Options | $ / shares $ 12.98
Outstanding-Weighted Average Remaining Contractual Life (Years) 2 years 25 days