Note 3 - Discontinued Operations - Discontinued Operations (Details) - USD ($)	3 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Sales revenue	$ 0	$ 0
Cost of goods sold	0	0
Gross profit	0	0
General and administrative expenses	459,517	493,405
Interest expense	(38,572)	(65,254)
Total other expense	(38,572)	(65,254)
Income tax expense	0	0
NET LOSS	0	(73,758)
Continuing Operations [Member]
Sales revenue	0	0
Cost of goods sold	0	0
Gross profit	0	0
General and administrative expenses	459,517	493,405
INCOME/(LOSS) FROM OPERATIONS	(459,517)	(493,405)
Interest expense	(38,572)	(65,254)
Other income	0	0
Total other expense	(38,572)	(65,254)
LOSS BEFORE INCOME TAXES	(498,089)	(558,659)
Income tax expense	0	0
NET LOSS	(498,089)	(558,659)
Discontinued Operations [Member]
Sales revenue	0	1,342,586
Cost of goods sold	0	(1,219,041)
Gross profit	0	123,545
General and administrative expenses	0	84,078
INCOME/(LOSS) FROM OPERATIONS	0	39,467
Interest expense	0	(102,331)
Other income	0	20,889
Total other expense	0	(81,442)
LOSS BEFORE INCOME TAXES	0	(41,975)
Income tax expense	0	(31,783)
NET LOSS	0	(73,758)
Segment, Continuing and Discontinued Operations [Member]
Sales revenue	0	1,342,586
Cost of goods sold	0	(1,219,041)
Gross profit	0	123,545
General and administrative expenses	459,517	577,483
INCOME/(LOSS) FROM OPERATIONS	(459,517)	(453,938)
Interest expense	(38,572)	(167,585)
Other income	0	20,889
Total other expense	(38,572)	(146,696)
LOSS BEFORE INCOME TAXES	(498,089)	(600,634)
Income tax expense	0	(31,783)
NET LOSS	$ (498,089)	$ (632,417)