Note 14 - Share-based Compensation (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Share-based Payment Arrangement, Restricted Stock Unit, Activity [Table Text Block]

					Weighted Average
Restricted Stock			Weighted Average		Remaining
Awards	Shares		Award Price		Contractual Term (Years)
Outstanding at January 1, 2019		527,900	$	24.37		3.5 years
Granted		70,000		20.80
Vested		117,850		23.58
Forfeited		34,750		25.06
Outstanding at December 31, 2019		445,300	$	23.96		3.4 years