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Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Sep. 30, 2017
Summary of Significant Accounting Policies [Abstract] |
Schedule of consolidated financial statements |
|  |  | September 30, 2017 |  |  | March 31, 2017 |
| Financial Position at: |  |  |  |  |  |
| Current assets |  |  | 5,470,152 |  |  |  | 4,202,662 |
| Non-current assets |  |  | 116,769 |  |  |  | 158,938 |
| Total assets |  |  | 5,586,921 |  |  |  | 4,361,600 |
| Current liabilities |  |  | 1,410,433 |  |  |  | 1,087,738 |
| Non-current liabilities |  |  | — |  |  |  | — |
| Total liabilities |  |  | 1,410,433 |  |  |  | 1,087,738 |
| Net assets |  |  | 4,176,488 |  |  |  | 3,273,862 |
|  |  | For the six months ended September 30, 2017 |  |  | For the six months ended September 30, 2016 |
| Results of Operations: |  |  |  |  |  |
| Revenues |  |  | 1,885,736 |  |  |  | 1,181,526 |
| Operating expenses |  |  | 1,070,884 |  |  |  | 448,436 |
| Other income (expenses) net |  |  | (50,085 | ) |  |  | (2,855 | )
| Earnings before tax |  |  | 864,937 |  |  |  | 735,945 |
| Tax expenses (benefits) |  |  | 229,057 |  |  |  | 207,196 |
| Net income |  |  | 635,880 |  |  |  | 528,749 |
Schedule of property and equipment estimated useful lives |
| Computer Equipment | 1 – 3 years
| Office Equipment | 4 – 5 years
| Motor Vehicle | 4 years
Schedule of intangible assets estimated useful lives |
| Software |  | 5 years
Schedule of fair value of financial instruments | At September 30, 2017:
|  |  | Carrying amount |  |  | Estimated |
|  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | fair value |
| Financial assets |  |  |  |  |  |  |  |  |  |  |  |
| Carried at (amortized) cost: |  |  |  |  |  |  |  |  |  |  |  |
| Cash and cash equivalents |  | $ | 8,546,582 |  |  | $ | — |  |  | $ | — |  |  | $ | 8,546,582 |
| Trade accounts receivable |  |  | 1,855,393 |  |  |  | — |  |  |  | — |  |  |  | 1,855,393 |
| Short-term investments |  |  | — |  |  |  | — |  |  |  | 1,997,792 |  |  |  | 1,997,792 |
|  |  | $ | 10,401,975 |  |  | $ | — |  |  | $ | 1,992,792 |  |  | $ | 12,399,767 |
|  |  | Carrying amount |  |  | Estimated |
|  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | fair value |
| Financial liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Carried at (amortized) cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Capital lease – current portion |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
|  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
At March 31, 2017:
|  |  | Carrying amount |  |  | Estimated |
|  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | fair value |
| Financial assets |  |  |  |  |  |  |  |  |  |  |  |
| Carried at (amortized) cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Cash and cash equivalents |  | $ | 3,222,361 |  |  | $ | — |  |  | $ | — |  |  | $ | 3,222,361 |
| Trade accounts receivable |  |  | 673,678 |  |  |  | — |  |  |  | — |  |  |  | 673,678 |
| Short-term investments |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
|  |  | $ | 3,896,093 |  |  | $ | — |  |  | $ | — |  |  | $ | 3,896,093 |
|  |  | Carrying amount |  |  | Estimated |
|  |  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | fair value |
| Financial liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Carried at (amortized) cost: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
| Capital lease – current portion |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
|  |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Schedule of exchange rate used for translation |
|  |  | September 30, 2017 |  |  | March 31, 2017 |  |  | September 30, 2016 |
| Period/year end RMB:US$ exchange rate |  |  | 6.6574 |  |  |  | 6.8905 |  |  |  | 6.6679 |
| Period/annual average RMB:US$ exchange rate |  |  | 6.7672 |  |  |  | 6.7291 |  |  |  | 6.5984 |
| Period/year end HKD:US$ exchange rate |  |  | 7.7705 |  |  |  | 7.7705 |  |  |  | 7.7547 |
| Period/annual average HKD:US$ exchange rate |  |  | 7.7588 |  |  |  | 7.7588 |  |  |  | 7.7582 |

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