| Summary of Identifiable Assets | The following table presents a summary of identifiable
assets as of December 31, 2020 and June 30, 2020:   
    |  |  | As of |  |  | As of |  |  
    |  |  | December 31, 2020 |  |  | June 30, 2020 |  |  
    | Identifiable assets: |  |  |  |  |  |  |  |  |  
    | Corporate headquarters |  | $ | 3,814,916 |  |  | $ | 4,508,724 |  |  
    | North America |  |  | 6,073,162 |  |  |  | 5,949,653 |  |  
    | Europe |  |  | 11,617,067 |  |  |  | 10,856,814 |  |  
    | Asia - Pacific |  |  | 63,953,775 |  |  |  | 67,157,898 |  |  
    | Consolidated |  | $ | 85,458,920 |  |  | $ | 88,473,089 |  |  | 
| Summary of Investment Under Equity Method | The following table presents a summary of investment under equity
method as of December 31, 2020 and June 30, 2020:   
    |  |  | As of |  |  | As of |  |  
    |  |  | December 31, 2020 |  |  | June 30, 2020 |  |  
    | Investment in associates under equity method: |  |  |  |  |  |  |  |  |  
    | Corporate headquarters |  | $ | 424,504 |  |  | $ | 473,692 |  |  
    | Asia - Pacific |  |  | 3,310,403 |  |  |  | 1,914,000 |  |  
    | Consolidated |  | $ | 3,734,907 |  |  | $ | 2,387,692 |  |  | 
| Summary of Operating Information | The following table presents a summary of operating information
for the three and six months ended December 31:   
    |  |  | For the Three Months |  |  | For the Six Months |  |  
    |  |  | Ended December 31, |  |  | Ended December 31, |  |  
    |  |  | 2020 |  |  | 2019 |  |  | 2020 |  |  | 2019 |  |  
    | Revenues from unaffiliated customers: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
    | North America |  | $ | 1,016,556 |  |  | $ | 1,277,343 |  |  | $ | 1,829,434 |  |  | $ | 2,254,518 |  |  
    | Europe |  |  | 2,726,206 |  |  |  | 2,842,329 |  |  |  | 5,878,097 |  |  |  | 5,434,668 |  |  
    | Asia - Pacific |  |  | 9,378,698 |  |  |  | 11,512,923 |  |  |  | 18,061,307 |  |  |  | 21,432,892 |  |  
    |  |  |  | 13,121,460 |  |  |  | 15,632,595 |  |  |  | 25,768,838 |  |  |  | 29,122,078 |  |  
    | Revenue from affiliated customers |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
    | Asia - Pacific |  |  | - |  |  |  | 57,424 |  |  |  | - |  |  |  | 140,357 |  |  
    |  |  |  | - |  |  |  | 57,424 |  |  |  | - |  |  |  | 140,357 |  |  
    | Consolidated |  | $ | 13,121,460 |  |  | $ | 15,690,019 |  |  | $ | 25,768,838 |  |  | $ | 29,262,435 |  |  
    |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
    | Intercompany revenue |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
    | Europe |  | $ | 126,757 |  |  | $ | 164,401 |  |  | $ | 265,913 |  |  | $ | 311,226 |  |  
    | Asia - Pacific |  |  | 3,125,729 |  |  |  | 2,505,437 |  |  |  | 5,284,357 |  |  |  | 3,570,203 |  |  
    | Eliminated |  | $ | 3,252,486 |  |  | $ | 2,669,838 |  |  | $ | 5,550,270 |  |  | $ | 3,881,429 |  |  
    |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
    | Net income (loss) after taxes and before non-controlling interest: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  
    | Corporate headquarters |  | $ | 1,173,146 |  |  | $ | (379,882 | ) |  | $ | 2,340,941 |  |  | $ | (1,244,092 | ) |  
    | North America |  |  | (47,019 | ) |  |  | 154,335 |  |  |  | (328,816 | ) |  |  | 96,348 |  |  
    | Europe |  |  | 173,085 |  |  |  | 423,649 |  |  |  | 776,101 |  |  |  | 804,743 |  |  
    | Asia - Pacific |  |  | (1,378,400 | ) |  |  | 348,834 |  |  |  | (1,743,937 | ) |  |  | (1,371,322 | ) |  
    | Consolidated |  | $ | (79,188 | ) |  | $ | 546,936 |  |  | $ | 1,044,289 |  |  | $ | (1,714,323 | ) |  |