Note 5 - Notes Payable and Line of Credit - Summary of Notes and Convertible Notes Payable (Details) - USD ($)	Mar. 31, 2022	Mar. 31, 2021	Oct. 23, 2017
Discount, short-term notes payable	$ (99,489)	$ (154,590)
Discount, short-term notes payable	(1,765)	(296,504)
Promissory Note [Member]
Short-Term Notes Payable	496,797
Discount, short-term notes payable	(99,489)	(154,590)
Carrying value, long-term notes payable	397,308	292,410
Total short term notes and convertible notes payable classified as continuing operations		447,000
Face Value, long-term notes payable		447,000
The 0% Note Payable Dated October 23, 2017 [Member] | Note Payable [Member]
Short-Term Notes Payable	49,797
Carrying value, long-term notes payable	49,797
The 0% Note Payable Dated October 23, 2017 [Member] | Promissory Note [Member]
Short-Term Notes Payable			$ 700,000
The 6 % Note Payable Dated September 30, 2023 [Member] | Convertible Debt [Member]
Short-Term Notes Payable	197,000	197,000
Discount, short-term notes payable	(26,254)	(40,561)
Carrying value, long-term notes payable	170,746	156,439
The 6 % Convertible Note Payable Mature in December 2023 [Member] | Convertible Debt [Member]
Short-Term Notes Payable	250,000
Discount, short-term notes payable	(73,235)
Carrying value, long-term notes payable	176,765
The 6 % Note Payable Dated December 31, 2023 [Member] | Convertible Debt [Member]
Short-Term Notes Payable		250,000
Discount, short-term notes payable		(114,029)
Carrying value, long-term notes payable		135,971
Note Payable [Member] | The 0% Note Payable Dated October 23, 2017 [Member]
Short-Term Notes Payable	54,330
Carrying value, short-term notes payable	54,330
Convertible Notes Payable [Member] | The 0% Note Payable Dated October 23, 2017 [Member]
Short-Term Notes Payable		369,445
Carrying value, short-term notes payable		369,445
Discount, short-term notes payable		0
Convertible Notes Payable [Member] | The 6% Note Payable Due November 30, 2018 [Member]
Short-Term Notes Payable	560,000	1,060,000
Carrying value, short-term notes payable	560,000	1,060,000
Discount, short-term notes payable		0
Convertible Notes Payable [Member] | The 6% Notes Payable Due January 18, 2022 [Member]
Short-Term Notes Payable	325,000	325,000
Carrying value, short-term notes payable	325,000	28,496
Discount, short-term notes payable		(296,504)
Convertible Notes Payable [Member] | The 6% Notes Payable Due July 1, 2022 [Member]
Short-Term Notes Payable	50,000
Carrying value, short-term notes payable	48,235
Discount, short-term notes payable	(1,765)
Line of Credit [Member] | The 8% Line of Credit Dated November 27, 2019 [Member]
Short-Term Notes Payable		485,000
Carrying value, short-term notes payable		485,000
Discount, short-term notes payable		0
Line of Credit [Member] | The 8% Line of Credit Dated July 24, 2020 [Member]
Short-Term Notes Payable		1,025,000
Carrying value, short-term notes payable		1,025,000
Discount, short-term notes payable		0
Promissory Note [Member]
Short-Term Notes Payable	989,330	4,376,308
Carrying value, short-term notes payable	987,565	4,079,804
Discount, short-term notes payable	$ (1,765)
Discount, short-term notes payable		(296,504)
Less: Notes payable classified as discontinued operations, face value		(485,000)
Less: Notes payable classified as discontinued operations, discount		0
Less: Notes payable classified as discontinued operations, carrying value		(485,000)
Total short term notes and convertible notes payable classified as continuing operations		3,891,308
Total short term notes and convertible notes payable classified as continuing operations		(296,504)
Total short term notes and convertible notes payable classified as continuing operations		3,594,804
Face Value, long-term notes payable		3,891,308
Senior Secured Convertible Promissory Note [Member] | The Amended 8% Senior Secured Convertible Promissory Note Dated February 28, 2019 [Member]
Short-Term Notes Payable		1,111,863
Carrying value, short-term notes payable		1,111,863
Discount, short-term notes payable		$ 0