Note 10 - Warrants (Tables)

3 Months Ended

Jun. 30, 2023

Notes Tables

Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

		Outstanding and exercisable
				Weighted-		Weighted-
Range of				average		average
exercise		Number		remaining life		exercise		Number
prices		outstanding		in years		price		exercisable
$	0.20		200,000		1.78	$	0.20		200,000	See below
			200,000		1.79	$	0.20		200,000

	2023				2022
	# of Shares		Weighted		# of Shares		Weighted
			Average				Average
			Exercise				Exercise
			Price				Price
Outstanding, beginning of year		-	$	-		-	$	-
Issued		200,000		0.20		-		-
Exercised		-		-		-		-
Expired		-		-		-		-
Cancelled		-		-		-		-
Outstanding, end of period		200,000	$	0.20		-	$	-
Exercisable, end of period		200,000	$	0.20		-	$	-