5. INTANGIBLE ASSETS - Amortization Expense (Details) - USD ($)	3 Months Ended	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2027	Dec. 31, 2026	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of Intangible Assets	$ 1,225,544	$ 816,587	$ 1,710	$ 493,229	$ 2,070,327	$ 2,565,998	$ 2,978,810	$ 3,363,558
Future amortization of intangible assets	$ 11,473,632

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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