XML 93 R75.htm IDEA: XBRL DOCUMENT v3.20.1

Note 14 - Commitments, Contingencies and Guarantees (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2020	Jan. 31, 2019
Cash Settled Restricted Share Units Nonvested Total Compensation Cost Not Yet Recognized	$ 1,100	$ 0
Derivative Instrument, Shares of Common Stock Held	251,422
Deferred Share Unit Liability, Number of Common Shares	251,422
PinPoint and CORE [Member]
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High	$ 10,100
Business Combination, Contingent Consideration Arrangements, Period for Revenue Performance Targets	2 years
Business Combination, Contingent Consideration, Liability, Total	$ 1,900

X

- Definition

Represents the period (following acquisition) over which contingent consideration is to be paid by the reporting entity if the acquired entity meets certain performance targets.

+ References

No definition available.

+ Details

Name:	dsgx_BusinessCombinationContingentConsiderationArrangementsPeriodForRevenuePerformanceTargets
Namespace Prefix:	dsgx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The cash settled restricted share units nonvested, total compensation cost not yet recognized.

+ References

No definition available.

+ Details

Name:	dsgx_CashSettledRestrictedShareUnitsNonvestedTotalCompensationCostNotYetRecognized
Namespace Prefix:	dsgx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Represents the number of common shares for which there is a deferred share unit liability.

+ References

No definition available.

+ Details

Name:	dsgx_DeferredShareUnitLiabilityNumberOfCommonShares
Namespace Prefix:	dsgx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of shares held by certain derivative instruments entered into by the company.

+ References

No definition available.

+ Details

Name:	dsgx_DerivativeInstrumentSharesOfCommonStockHeld
Namespace Prefix:	dsgx_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)(3)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

+ Details

Name:	us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Amount of liability recognized arising from contingent consideration in a business combination.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 35
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=116859824&loc=d3e6819-128478

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 25
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6911189&loc=d3e6408-128476

+ Details

Name:	us-gaap_BusinessCombinationContingentConsiderationLiability
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	us-gaap_BusinessAcquisitionAxis=dsgx_PinpointAndCoreMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: