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RESERVES | 12 Months Ended
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Mar. 31, 2021
Reserves |
RESERVES | NOTE 16 – RESERVES Asset reserves and allowances for years ended March 31, 2021 and 2020 are presented in the following table: SCHEDULE OF VALUATION AND QUALIFYING ACCOUNTS
|  | Balance at |  |  | Charged to |  |  | Reduction to |  |  | Credited to |  |  | Balance at |
|  | Beginning of |  |  | Costs and |  |  | Allowance for |  |  | Costs and |  |  | End of |
Description |  | Year |  |  | Expenses |  |  | Write off |  |  | Expenses |  |  | Year |
Year ended March 31, 2021 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reserves deducted from assets to which they apply: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 337,461 |  |  | $ | 16,086 |  |  | $ | (227,184 | ) |  | $ | 12,217 |  |  | $ | 138,580 |
Inventory reserve |  | $ | 434,000 |  |  | $ | 688,200 |  |  | $ | (485,861 | ) |  | $ | - |  |  | $ | 636,339 |
Year ended March 31, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Reserves deducted from assets to which they apply: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for doubtful accounts |  | $ | 51,096 |  |  | $ | 303,843 |  |  | $ | (15,303 | ) |  | $ | (2,175 | ) |  | $ | 337,461 |
Inventory reserve |  | $ | 254,000 |  |  | $ | 398,730 |  |  | $ | (218,730 | ) |  | $ | - |  |  | $ | 434,000 |

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- References No definition available. + Details
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Namespace Prefix: | SMDM_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Reserves [TextBlock] + References No definition available. + Details
Name: | SMDM_ReservesTextBlock
Namespace Prefix: | SMDM_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration