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OBLIGATIONS TO CLIENTS FOR RETURNS AND ALLOWANCES (Details Textual) - USD ($) | Mar. 31, 2016 | Mar. 31, 2015
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Obligations To Clients For Returns And Allowances [Line Items] |  |
Customer Refund Liability, Current | $ 121,092 | $ 399,419

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

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- Definition Current regulatory liabilities generally represent obligations to make refunds to customers for various reasons including overpayment. + References No definition available. + Details
Name: | us-gaap_CustomerRefundLiabilityCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant