Annual report pursuant to Section 13 and 15(d)

Note 14 - Employee and Director Benefits - Exercisable Options Activity (Details)

v3.8.0.1
Note 14 - Employee and Director Benefits - Exercisable Options Activity (Details)
$ / shares in Units, $ in Thousands
 12 Months Ended
Dec. 31, 2017
USD ($)
$ / shares
shares
Shares, exercisable (in shares) | shares 808,236
Weighted average exercise price, exercisable (in dollars per share) | $ / shares $ 5.22
Weighted average remaining contractual term, exercisable (Year) 3 years 328 days
Aggregate intrinsic value, exercisable | $ $ 29,321
Exercise Price Range 1 [Member]  
Shares, exercisable (in shares) | shares 145,336
Weighted average exercise price, exercisable (in dollars per share) | $ / shares $ 4.17
Weighted average remaining contractual term, exercisable (Year) 2 years 146 days
Aggregate intrinsic value, exercisable | $ $ 5,426
Exercise Price Range 2 [Member]  
Shares, exercisable (in shares) | shares 483,500
Weighted average exercise price, exercisable (in dollars per share) | $ / shares $ 5
Weighted average remaining contractual term, exercisable (Year) 3 years 292 days
Aggregate intrinsic value, exercisable | $ $ 17,648
Exercise Price Range 3 [Member]  
Shares, exercisable (in shares) | shares 120,000
Weighted average exercise price, exercisable (in dollars per share) | $ / shares $ 5.50
Weighted average remaining contractual term, exercisable (Year) 5 years 73 days
Aggregate intrinsic value, exercisable | $ $ 4,320
Exercise Price Range 4 [Member]  
Shares, exercisable (in shares) | shares 45,000
Weighted average exercise price, exercisable (in dollars per share) | $ / shares $ 6.92
Weighted average remaining contractual term, exercisable (Year) 6 years
Aggregate intrinsic value, exercisable | $ $ 1,556
Exercise Price Range 5 [Member]  
Shares, exercisable (in shares) | shares 14,400
Weighted average exercise price, exercisable (in dollars per share) | $ / shares $ 15.74
Weighted average remaining contractual term, exercisable (Year) 7 years 36 days
Aggregate intrinsic value, exercisable | $ $ 371