Note 2 - Significant Accounting Policies (Details Textual)			12 Months Ended		24 Months Ended
	Mar. 01, 2022 USD ($) ft²	Jul. 21, 2018 USD ($) ft²	Jun. 30, 2023 USD ($) $ / shares	Jun. 30, 2022 USD ($) $ / shares	Jun. 30, 2023 USD ($) $ / shares shares	Jun. 30, 2021 $ / shares	Jul. 01, 2019 USD ($)
Operating Lease, Liability, Current			$ 58,771	$ 53,862	$ 58,771
Operating Lease, Liability, Noncurrent			263,047	321,818	263,047
Operating Lease, Right-of-Use Asset			310,796	368,512	310,796
Contract with Customer, Asset, after Allowance for Credit Loss, Current			186,959	649,433	186,959
Contract with Customer, Asset, after Allowance for Credit Loss, Noncurrent			108,052	108,052	$ 108,052
Advertising Expense			$ 20,735	$ 22,673
Common Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares			$ 0.01	$ 0.01	$ 0.01	$ 0.01
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount (in shares) | shares					23,737
Minimum [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares			4.00		$ 4.00
Maximum [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares			$ 10.00		$ 10.00
Located at 5282 South Commerce Drive Suite D292 [Member]
Lessee, Operating Lease, Renewal Term (Year)	3 years
Area of Real Estate Property (Square Foot) | ft²		9,800
Operating Leases, Monthly Rent Expense	$ 5,871	$ 10,200
Lessee, Operating Lease, Term of Contract (Year)		3 years
Percentage of Monthly Rent Increase Each Year	3.00%
Located at 5258 South Commerce Drive [Member]
Lessee, Operating Lease, Renewal Term (Year)	3 years
Area of Real Estate Property (Square Foot) | ft²	5,000
Cumulative Effect, Period of Adoption, Adjustment [Member]
Operating Lease, Liability, Current							$ 82,517
Operating Lease, Liability, Noncurrent							760,172
Operating Lease, Right-of-Use Asset							$ 842,689
Lessee, Operating Lease, Renewal Term (Year)							3 years
Accounts Receivable [Member]
Number of Major Customers			1
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer A & B [Member]
Concentration Risk, Percentage			10.00%
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Customer A [Member]
Accounts Receivable, after Allowance for Credit Loss			$ 962,300	$ 962,300	$ 962,300