Note 14 - Segments (Details Textual)	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Number of Operating Segments	3
Accounts Receivable, after Allowance for Credit Loss, Total	$ 333,697	$ 331,196	$ 354,196
One Individual [Member] | Pittsburgh [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	489,921
Accounts Receivable, after Allowance for Credit Loss, Total	$ 52,072