2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Accounts Receivable (Details) - USD ($)	Sep. 30, 2021	Sep. 30, 2020
Accounting Policies [Abstract]
Accounts Receivable, gross	$ 2,891,784	$ 902,146
Other receivables	421,681
Retainage receivable		615
Provision for doubtful allowances	(693,508)	(42,970)
Total Accounts Receivable, net	$ 2,619,957	$ 859,791