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Summary of Significant Accounting Policies (Details) |  | 3 Months Ended | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Nov. 11, 2020 USD ($) | Mar. 31, 2021 USD ($) | Dec. 31, 2020 USD ($) | Sep. 30, 2020 USD ($) | Mar. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Sep. 30, 2019 USD ($) | Mar. 31, 2021 USD ($) | Mar. 31, 2020 USD ($) | Jun. 30, 2020 USD ($) | Mar. 31, 2021 CNY (¥) | Mar. 31, 2021 HKD ($)
Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  | $ (1,219,000) | $ (964,037) | $ (866,823) | $ (677,739) | $ (1,001,033) | $ (596,985) |  |  |  |  |
Accumulated deficit |  | 10,460,000 |  |  |  |  |  | $ 10,460,000 |  |  |  |
Negative cash flows from operations |  |  |  |  |  |  |  | 3,060,000 |  |  |  |
Company issuance share value |  |  |  |  |  |  |  | $ 100,000,000 |  |  |  |
Issuance of common stock | $ 931,000 |  |  |  |  |  |  |  |  |  |  |
Owned subsidiaries, description |  |  |  |  |  |  |  | The accompanying CFS were prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) and applicable rules and regulations of the SEC regarding consolidated financial reporting. The accompanying CFS include the financial statements of the Company and its 100% owned subsidiaries “Shuhai Skill (HK)”, and “Tianjin Information”, and its VIE, Shuhai Beijing, and Shuhai Beijing’s 100% owned subsidiaries – Xunrui, Guozhong Times, Guohao Century, Guozhong Haoze, and Jingwei, and Guohao Century’s 69.81% owned subsidiary – Zhangxun, and Shuhai Beijing’s 99% owned subsidiary - Shuhai Nanjing. All significant inter-company transactions and balances were eliminated in consolidation. |  |  |  |
Net profit, percentage |  |  |  |  |  |  |  | 100.00% |  |  |  |
Allowances for slow-moving and obsolete inventory |  | 254,960 |  |  |  |  |  | $ 254,960 |  | $ 105,210 |  |
Useful life of intangible assets |  |  |  |  |  |  |  | 3 years |  |  |  |
operating lease right-of-use assets |  | 1,525,461 |  |  |  |  |  | $ 1,525,461 |  | 702,952 |  |
Operating lease liabilities |  | $ 659,280 |  |  |  |  |  | $ 659,280 |  | 346,629 |  |
Tax benefit percentage |  | 50.00% |  |  |  |  |  | 50.00% |  |  | 50.00% | 50.00%
Noncontrolling interest |  | $ 57,347 |  |  |  |  |  | $ 93,902 |  |  |  |
Cash in state-owned banks |  | 171,177 |  |  |  |  |  | 171,177 |  | 1,065,936 |  |
Cash denominated in RMB with a U.S. dollar equivalent |  |  |  |  |  |  |  | 66,779 |  | 733,849 |  |
Federal Deposit Insurance Corporation |  |  |  |  |  |  |  | 250,000 |  |  |  |
Deposit protection |  | 64,000 |  |  |  |  |  | 64,000 |  |  |  | $ 500,000
Safe campus intelligence control systems, sold |  |  |  |  |  |  |  | 117,325 |  |  |  |
Face temperature measurement access control products |  | 17,905 |  |  |  |  |  |  |  |  |  |
U.S. financial institutions [Member] |  |  |  |  |  |  |  |  |  |  |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Cash balance not insured |  | 80,265 |  |  |  |  |  | 80,265 |  |  |  |
Cash balance |  | 24,133 |  |  |  |  |  | 24,133 |  |  |  |
Lease Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
operating lease right-of-use assets |  | 1,525,461 |  |  |  |  |  | 1,525,461 |  |  |  |
Operating lease liabilities |  | $ 1,436,735 |  |  |  |  |  | 1,436,735 |  |  |  |
Consolidated Financial Statement [Member] |  |  |  |  |  |  |  |  |  |  |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  |  |  |  |  |  |  | $ 3,050,000 | $ 2,280,000 |  |  |
Zhangxun [Member] |  |  |  |  |  |  |  |  |  |  |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest |  | 30.19% |  |  |  |  |  | 30.19% |  |  | 30.19% | 30.19%
Shuhai Nanjing [Member] |  |  |  |  |  |  |  |  |  |  |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest |  | 1.00% |  |  |  |  |  | 1.00% |  |  | 1.00% | 1.00%
Shuhai Beijing [Member] |  |  |  |  |  |  |  |  |  |  |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Equity option agreement, description |  |  |  |  |  |  |  | the Shuhai Beijing Shareholders and Tianjin Information entered into an equity option agreement (the “Option Agreement”) on October 27, 2015, pursuant to which the Shuhai Beijing Shareholders granted Tianjin Information or its designee(s) the irrevocable right and option to acquire all or a portion of Shuhai Beijing Shareholders’ equity interests in Shuhai Beijing for RMB 0.001 for each capital contribution of RMB1.00. Pursuant to the terms of the Option Agreement, Tianjin Information and the Shuhai Beijing shareholders agreed to certain restrictive covenants to safeguard the rights of Tianjin Information under the option Agreement. Tianjin Information agreed to pay RMB1.00 annually to Shuhai Beijing Shareholders to maintain the option rights. Tianjin Information may terminate the Option Agreement upon written notice. The Option Agreement is valid for 10 years from the effective date and renewable at Tianjin Information’s option. |  |  |  |
Allowances for slow-moving and obsolete inventory |  | $ 47,257 |  |  |  |  |  | $ 47,257 |  | $ 44,237 |  |
Concentration of Credit Risk [Member] |  |  |  |  |  |  |  |  |  |  |  |
Summary of Significant Accounting Policies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Cash in state-owned banks |  | $ 76,000 |  |  |  |  |  | $ 76,000 |  |  | ¥ 500,000 |

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