Accounts Receivable (Details) - USD ($)	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Summary of accounts receivable
Total gross receivables	$ 1,426,202	$ 3,880,762	$ 3,431,522
Less: allowance for credit losses	(145,746)	(963,116)	(795,914)
Total net receivables	1,280,456	2,917,646	2,635,608
Construction services [Member]
Summary of accounts receivable
Total gross receivables	1,310,456	2,293,187	1,391,555
Engineering services [Member]
Summary of accounts receivable
Total gross receivables		86,388	86,264
Medical revenue [Member]
Summary of accounts receivable
Total gross receivables		679,446	1,157,819
Retainage receivable [Member]
Summary of accounts receivable
Total gross receivables		635,049	615,136
Other receivable [Member]
Summary of accounts receivable
Total gross receivables	$ 115,746	$ 186,692	$ 180,748