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Related Party Transactions (Details Narrative) - USD ($) | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Jul. 30, 2020 | Mar. 31, 2020
Related Party Transaction [Line Items] |  |  |  |  |  |
Due from related parties | $ 0 |  | $ 0 |  |  | $ 100,000
Due to related parties | 129,000 |  | 129,000 |  |  | 502,000
Inventory | 5,336,912 |  | 5,336,912 |  |  | $ 7,601,277
Gain - related party | 187,988 |  | 187,988 |  |  |
Purchase and Sales Agreement [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Inventory |  |  |  |  | $ 685,000 |
Warehouse Facility [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Revenue from related parties | 0 | 45,000 | 0 | 284,000 |  |
Winglight Pacific Ltd [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Revenue from related parties | 0 | 0 | $ 0 | $ 852,000 |  |
Related party gross margin percentage |  |  | 23.70% | 23.70% |  |
Starlight Electronics Co., Ltd [Member] |  |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |  |
Service expenses | $ 91,000 | $ 91,000 | $ 272,000 | $ 282,000 |  |

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