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Investments in Joint Ventures - Summary of the Financial Information for Equity Accounted Investments (Detail)
 12 Months Ended
Dec. 31, 2019
USD ($)
Space Gas Inc [Member]  
Schedule of Equity Method Investments [Line Items]  
Current assets $ 2,237,644
Non-current assets 13,221,364
Current liabilities 1,426,128
Long-term liabilities 5,530,995
Revenues 3,362,478
Operating income/(loss) 1,122,467
Net income/(loss) 854,885
Financial Power Inc [Member]  
Schedule of Equity Method Investments [Line Items]  
Current assets 1,745,681
Non-current assets 13,229,810
Current liabilities 1,583,998
Long-term liabilities 5,530,995
Revenues 3,281,896
Operating income/(loss) 477,559
Net income/(loss) 212,498
Cannes View Inc [Member]  
Schedule of Equity Method Investments [Line Items]  
Current assets 2,560,065
Non-current assets 14,532,274
Current liabilities 1,702,293
Long-term liabilities 7,792,274
Revenues 2,707,338
Operating income/(loss) 872,331
Net income/(loss) 627,671
ColoradoOiland Gas Inc [Member]  
Schedule of Equity Method Investments [Line Items]  
Current assets 2,265,263
Non-current assets 12,801,053
Current liabilities 2,488,495
Long-term liabilities 6,818,237
Revenues 2,032,648
Operating income/(loss) (85,071)
Net income/(loss) (303,415)
Frost Investments Corp Inc [Member]  
Schedule of Equity Method Investments [Line Items]  
Current assets 13,693,747
Non-current assets 20,396,424
Current liabilities 2,653,152
Long-term liabilities 10,757,210
Revenues 2,047,026
Operating income/(loss) (370,748)
Net income/(loss) $ (420,191)