XML 72 R56.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Note 6 - Other Receivables (Details Textual) - USD ($) $ in Millions | Jan. 31, 2017 | Jan. 31, 2016
--- | --- | ---
Amounts Recoverable from Funds Held in Escrow | $ 0.6 | $ 0.2

X
- Definition Amount recoverable from funds held In escrow related to acquisitions. + References No definition available. + Details
Name: | dsgx_AmountsRecoverableFromFundsHeldInEscrow
Namespace Prefix: | dsgx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant