XML 42 R31.htm IDEA: XBRL DOCUMENT
v3.20.4

Reserve for Sales Returns (Tables) | 9 Months Ended
--- | ---
Dec. 31, 2020
First Priority Lien Percentage |
Schedule of Reserve for Sales Returns | Changes in the Company’s reserve for sales returns are presented in the following table:
|  | December 31, |  |  | December 31, |
|  | 2020 |  |  | 2019 |
Reserve for sales returns at beginning of the year |  | $ | 1,224,000 |  |  | $ | 896,000 |
Provision for estimated sales returns |  |  | 4,187,000 |  |  |  | 6,757,000 |
Sales returns received |  |  | (2,445,000 | ) |  |  | (3,107,000 | )
Reserve for sales returns at end of the period |  | $ | 2,966,000 |  |  | $ | 4,546,000 |

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

X
- Definition Schedule of Reserve for Sales Returns [Table Text Block] + References No definition available. + Details
Name: | SMDM_ScheduleOfReserveForSalesReturnsTableTextBlock
Namespace Prefix: | SMDM_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration