XML 66 R55.htm IDEA: XBRL DOCUMENT
v3.21.2

SCHEDULE OF RESERVE FOR SALES RETURNS (Details) - USD ($) | 6 Months Ended
--- | ---
Sep. 30, 2021 | Sep. 30, 2020
Reserve For Sales Returns |  |
Reserve for sales returns at beginning of the year | $ 960,000 | $ 1,224,000
Provision for estimated sales returns | 2,110,222 | 2,306,668
Sales returns received | (1,206,491) | (1,807,613)
Reserve for sales returns at end of the period | $ 1,863,731 | $ 1,723,055

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

X
- Definition Provision for estimated sales returns. + References No definition available. + Details
Name: | SMDM_ProvisionForEstimatedSalesReturns
Namespace Prefix: | SMDM_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Reserve for sales returns. + References No definition available. + Details
Name: | SMDM_ReserveForSalesReturn
Namespace Prefix: | SMDM_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Sales returns received. + References No definition available. + Details
Name: | SMDM_SalesReturnsReceived
Namespace Prefix: | SMDM_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration