XML 64 R54.htm IDEA: XBRL DOCUMENT v3.20.2
Note 10 - Common Stock and Stock-based Compensation Plans - Summary of Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2020
Dec. 31, 2019
Outstanding, Number of shares (in shares) [1] 642,253  
Outstanding, Weighted average exercise price (in dollars per share) $ 20.14  
Outstanding, Weighted average remaining contractual term (Year) 3 years 4 months 24 days [2] 3 years 6 months
Outstanding, Aggregated intrinsic value $ 7,061 [2] $ 4,718
Granted, Number of shares (in shares) [1] 0  
Exercised, Number of shares (in shares) [1] (201,066)  
Exercised, Weighted average exercise price (in dollars per share) $ 17.36  
Forfeited or expired, Number of shares (in shares) [1] (21)  
Forfeited or expired, Weighted average exercise price (in dollars per share) $ 16.20  
Outstanding, Number of shares (in shares) [1] 441,166 [2] 642,253
Outstanding, Weighted average exercise price (in dollars per share) $ 21.42 [2] $ 20.14
Exercisable, Number of shares (in shares) [1],[3] 415,166  
Exercisable, Weighted average exercise price (in dollars per share) [3] $ 20.98  
Exercisable, Weighted average remaining contractual term (Year) [3] 3 years 3 months 18 days  
Exercisable, Aggregated intrinsic value [3] $ 6,827  
[1] The SAR units are convertible for a maximum number of shares of the Company’s common stock equal to 75% of the SAR units subject to the grant.
[2] Due to the ceiling imposed on the SAR grants, the outstanding amount equals a maximum of 422,500 shares of the Company's common stock issuable upon exercise.
[3] Due to the ceiling imposed on the SAR grants, the exercisable amount equals a maximum of 396,500 shares of the Company's common stock issuable upon exercise.