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DISCONTINUED OPERATIONS - Cash Flows Related to Discontinued Operations (Details) - USD ($)
6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
DISCONTINUED OPERATIONS    
Accounts receivable $ (175,676) $ (344)
Prepaid expenses and other assets 529,224 107,115
Accounts payable and accrued expenses (712,362) (414,877)
Operations Segment    
DISCONTINUED OPERATIONS    
Accounts receivable (75,268) 10,350
Prepaid expenses and other assets 502,278 100,884
Depreciation and amortization 8,519 7,669
Capital expenditures   (3,011)
Accounts payable and accrued expenses (135,305) (6,292)
Customer deposits $ (466,785) $ (223,022)