XML 72 R52.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Schedule of Stockholders' Equity Note, Warrants or Rights, Activity (Details) - $ / shares | 12 Months Ended
--- | ---
Nov. 30, 2017 | Nov. 30, 2016
Warrants outstanding, beginning of period | 2,484,650 | 2,767,800
Warrants outstanding, beginning of period, weighted average exercise price | $ 0.16 | $ 0.17
Warrants cancelled |  | 0
Warrants cancelled, weighted average exercise price |  | $ 0
Warrants outstanding, end of period | 20,941,160 | 2,484,650
Warrants outstanding, weighted average exercise price | $ 0.18 | $ 0.16
Warrants exercisable, end of period | 20,941,160 | 2,484,650
Warrants exercisable,end of period, weighted average exercise price | $ 0.18 | $ 0.16
Warrants Expired 1 [Member] |  |
Warrants expired | (7,650) | (131,250)
Warrants expired, weighted average exercise price | $ 0.25 | $ 0.13
Warrants Expired 2 [Member] |  |
Warrants expired |  | (151,900)
Warrants expired, weighted average exercise price |  | $ 0.45
Warrants Granted 1 [Member] |  |
Warrants granted | 17,891,806 |
Warrants granted, weighted average exercise price | $ 0.18 |
Warrants Granted 2 [Member] |  |
Warrants granted | 572,354 |
Warrants granted, weighted average exercise price | $ 0.15 |

X
- Definition Warrants cancelled + References No definition available. + Details
Name: | sdev_ClassOfWarrantOrRightCancellationsInPeriod
Namespace Prefix: | sdev_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Warrants cancelled, weighted average exercise price + References No definition available. + Details
Name: | sdev_ClassOfWarrantOrRightCancellationsInPeriodWeightedAverageExercisePrice
Namespace Prefix: | sdev_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Warrants exercisable, end of period + References No definition available. + Details
Name: | sdev_ClassOfWarrantOrRightExercisableNumber
Namespace Prefix: | sdev_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Warrants exercisable,end of period, weighted average exercise price + References No definition available. + Details
Name: | sdev_ClassOfWarrantOrRightExercisableWeightedAverageExercisePrice
Namespace Prefix: | sdev_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Warrants expired + References No definition available. + Details
Name: | sdev_ClassOfWarrantOrRightExpirationsInPeriod
Namespace Prefix: | sdev_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Warrants expired, weighted average exercise price + References No definition available. + Details
Name: | sdev_ClassOfWarrantOrRightExpirationsInPeriodWeightedAverageExercisePrice
Namespace Prefix: | sdev_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Warrants granted + References No definition available. + Details
Name: | sdev_ClassOfWarrantOrRightGrantsInPeriod
Namespace Prefix: | sdev_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Warrants granted, weighted average exercise price + References No definition available. + Details
Name: | sdev_ClassOfWarrantOrRightGrantsInPeriodWeightedAverageExercisePrice
Namespace Prefix: | sdev_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Warrants outstanding, beginning of period, weighted average exercise price + References No definition available. + Details
Name: | sdev_ClassOfWarrantOrRightOutstandingWeightedAverageExercisePrice
Namespace Prefix: | sdev_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(i)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
Name: | us-gaap_ClassOfWarrantOrRightOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=sdev_WarrantsExpiredOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=sdev_WarrantsExpiredTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=sdev_WarrantsGrantedOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ClassOfWarrantOrRightAxis=sdev_WarrantsGrantedTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |