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Accounts Receivable (Details) - USD ($)	Sep. 30, 2022	Dec. 31, 2021
Summary of accounts receivable
Total gross receivables	$ 2,676,589	$ 3,880,762
Less: allowance for doubtful accounts	(963,116)	(963,116)
Total net receivables	1,713,473	2,917,646
Construction services [Member]
Summary of accounts receivable
Total gross receivables	1,986,502	2,293,187
Engineering services [Member]
Summary of accounts receivable
Total gross receivables	11,794	86,388
Medical [Member]
Summary of accounts receivable
Total gross receivables	2,675	679,446
Retainage receivable [Member]
Summary of accounts receivable
Total gross receivables	543,416	635,049
Other receivable [Member]
Summary of accounts receivable
Total gross receivables	$ 132,202	$ 186,692

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