Note 5 - Receivables - Accounts Receivable (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Accounts Receivable, after Allowance for Credit Loss	$ 1,117,862	$ 1,629,559	$ 1,664,862
Accounts receivable	1,117,862	1,629,559	$ 1,664,862
Billed Revenues [Member] | Government Sector [Member]
Accounts Receivable, after Allowance for Credit Loss	1,110,001	1,573,407
Accounts receivable	1,110,001	1,573,407
Billed Revenues [Member] | Commercial and Industrial Sector [Member]
Accounts Receivable, after Allowance for Credit Loss	6,600	56,152
Accounts receivable	6,600	56,152
Unbilled Revenues [Member]
Accounts Receivable, after Allowance for Credit Loss	1,261	0
Accounts receivable	$ 1,261	$ 0