Note 6 - Stock-based Compensation Plans (Tables)

3 Months Ended

Mar. 31, 2022

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, 2022		22,350	$	54.96
Granted		-		-
Vested		-		-
Forfeited		-		-
Nonvested at March 31, 2022		22,350	$	54.96