3. SUMMARY OF SIGNIFICANT POLICIES - Fair Value of Financial Instruments (Details)	Jun. 30, 2021 USD ($)
Amount [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Derivative Asset
Level 1
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Derivative Asset
Level 2
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Derivative Asset	190,669
Level 3
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Derivative Asset	$ 190,669