This percentage represents the amount by which rental expense will step up each year.

No definition available.

Name:	qbak_MonthlyRentStepUpPercentage
Namespace Prefix:	qbak_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of the monthly rent required for operating lease.

+ References

No definition available.

+ Details

Name:	qbak_OperatingLeaseMonthlyRent
Namespace Prefix:	qbak_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the amount of rent to be received per month under a sublease arrangement.

+ References

No definition available.

+ Details

Name:	qbak_OperatingLeasesMonthlySubleaseRent
Namespace Prefix:	qbak_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

This percentage represents the amount by which the rental payments to be received, under a sublease arrangement, will step up each year.

+ References

No definition available.

+ Details

Name:	qbak_OperatingLeasesSubleaseMonthlyRentStepUpPercentage
Namespace Prefix:	qbak_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Area of a real estate property.

+ References

No definition available.

+ Details

Name:	us-gaap_AreaOfRealEstateProperty
Namespace Prefix:	us-gaap_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of lessee's operating lease renewal, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980

+ Details

Name:	us-gaap_LesseeOperatingLeaseRenewalTerm
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

+ Details

Name:	us-gaap_LesseeOperatingLeaseTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- Definition

Rental expense for the reporting period incurred under operating leases, including minimum and any contingent rent expense, net of related sublease income.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717

+ Details

Name:	us-gaap_OperatingLeasesRentExpenseNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_RealEstatePropertiesAxis=qbak_SimiValleyCaliforniaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RealEstatePropertiesAxis=qbak_WestlakeVillageCaliforniaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RealEstatePropertiesAxis=country_SG
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Note 8 - Commitments (Details Textual)			12 Months Ended
Note 8 - Commitments (Details Textual)	Apr. 01, 2016 USD ($) ft²	Dec. 15, 2014 USD ($) ft²	Dec. 31, 2018 USD ($) ft²	Dec. 31, 2017 USD ($)
Operating Leases, Rent Expense, Net, Total			$ 151,000	$ 145,000
Simi Valley California [Member]
Area of Real Estate Property \| ft²		15,160
Lessee, Operating Lease, Term of Contract		3 years
Lessee, Operating Lease, Renewal Term		3 years
Operating Lease Monthly Rent		$ 11,000
Monthly Rent Step-up Percentage		3.00%
Westlake Village, California [Member]
Area of Real Estate Property \| ft²			5,400
Operating Lease Monthly Rent			$ 11,000
Monthly Rent Step-up Percentage			3.00%
Operating Leases, Monthly Sublease Rent			$ 12,000
Operating Leases, Sublease, Monthly Rent Step-up Percentage			3.00%
SINGAPORE
Area of Real Estate Property \| ft²	1,359
Lessee, Operating Lease, Term of Contract	2 years
Operating Lease Monthly Rent	$ 2,500