Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

SEGMENT REPORTING - Segment information (Details)

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SEGMENT REPORTING - Segment information (Details)
 12 Months Ended
Dec. 31, 2021
USD ($)
segment
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Disclosure of operating segments [line items]      
Number of reportable business segments | segment 2    
Revenue $ 12,778,262 $ 7,633,776  
Depreciation and Amortization 1,574,913 1,570,593  
(Loss) income from Operations (4,168,484) (2,680,849)  
Net Profit or Loss (4,618,050) (3,123,069)  
Interest expense, net 449,566 853,983  
Capital Expenditures   671,587  
Total Property and Equipment, net 6,776,116 7,596,990 $ 7,399,412
Total Assets 17,595,407 16,957,713  
Total Liabilities 9,609,411 9,251,624  
Depreciation and amortization 38,864 40,906  
Education      
Disclosure of operating segments [line items]      
Revenue 9,676,052 5,618,210  
Depreciation and Amortization 426,740 616,195  
(Loss) income from Operations (2,153,975) 306,710  
Net Profit or Loss (2,252,794) (53,722)  
Interest expense, net 98,819 107,833  
Capital Expenditures   437,764  
Total Property and Equipment, net 15,442 10,881  
Total Assets 5,122,967 3,336,242  
Total Liabilities 3,589,315 5,852,323  
Campus      
Disclosure of operating segments [line items]      
Revenue 3,102,210 2,015,566  
Depreciation and Amortization 1,148,173 954,398  
(Loss) income from Operations (2,014,508) (2,987,559)  
Net Profit or Loss (2,365,255) (3,069,347)  
Interest expense, net 350,747 746,150  
Capital Expenditures   233,823  
Total Property and Equipment, net 6,760,674 7,586,109  
Total Assets 12,472,440 13,621,471  
Total Liabilities 6,020,096 3,399,301  
Campus | Cost of revenue      
Disclosure of operating segments [line items]      
Depreciation and amortization 1,109,309 937,773  
Campus | Operating expenses.      
Disclosure of operating segments [line items]      
Depreciation and amortization $ 38,864 $ 47,537