Note 6 - Stock-based Compensation Plans (Tables)

6 Months Ended

Jun. 30, 2021

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, 2021		32,650	$	53.93
Granted		-		-
Vested		-		-
Forfeited		-		-
Nonvested at June 30, 2021		32,650	$	53.93