Note 6 - Stock-based Compensation Plans (Tables)

9 Months Ended

Sep. 30, 2019

Notes Tables

Schedule of Nonvested Restricted Stock Units Activity [Table Text Block]

			Weighted
	Number		Average
	of		Grant Date
	Shares		Fair Value
Nonvested at January 1, 2019		24,900	$	34.10
Granted		9,750		52.09
Vested		6,900		31.43
Forfeited		-		-
Nonvested at September 30, 2019		27,750	$	41.08