XML 81 R65.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Note 13 - Commitments, Contingencies and Guarantees (Details) - Lease Obligations $ in Thousands | Jan. 31, 2016 USD ($)
--- | ---
Note 13 - Commitments, Contingencies and Guarantees (Details) - Lease Obligations [Line Items] |
2017 | $ 4,286
2018 | 2,911
2019 | 1,872
2020 | 685
2021 | 254
| 10,008
Operating Leases [Member] |
Note 13 - Commitments, Contingencies and Guarantees (Details) - Lease Obligations [Line Items] |
2017 | 4,152
2018 | 2,845
2019 | 1,872
2020 | 685
2021 | 254
| 9,808
Capital Leases [Member] |
Note 13 - Commitments, Contingencies and Guarantees (Details) - Lease Obligations [Line Items] |
2017 | 134
2018 | 66
| $ 200

X
- References No definition available. + Details
Name: | dsgx_Note13CommitmentsContingenciesandGuaranteesDetailsLeaseObligationsLineItems
Namespace Prefix: | dsgx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of contractual obligation, including but not limited to, long-term debt, capital lease obligations, operating lease obligations, purchase obligations, and other commitments. + References No definition available. + Details
Name: | us-gaap_ContractualObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of contractual obligation due in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
Name: | us-gaap_ContractualObligationDueInFifthYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of contractual obligation due in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
Name: | us-gaap_ContractualObligationDueInFourthYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of contractual obligation due in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
Name: | us-gaap_ContractualObligationDueInNextTwelveMonths
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of contractual obligation due in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
Name: | us-gaap_ContractualObligationDueInSecondYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of contractual obligation due in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References No definition available. + Details
Name: | us-gaap_ContractualObligationDueInThirdYear
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | us-gaap_LeaseArrangementTypeAxis=dsgx_OperatingLeasesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LeaseArrangementTypeAxis=dsgx_CapitalLeasesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |