v2.4.0.6

3. Interest, Advances and Promissory Notes Payable (Detail) - Advances Payable (USD $)	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2011
Advances payable to:
	$ 65,527	$ 65,527
	$ 105,527	$ 100,527

X

- Details

Name:	alrt_AdvancesPayableToAbstract
Namespace Prefix:	alrt_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The increase (decrease) during the reporting period in the aggregate amount of accrued advances to be paid.

+ References

No definition available.

+ Details

Name:	alrt_IncreaseDecreaseDueAdvancesPayable
Namespace Prefix:	alrt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The increase (decrease) during the reporting period in current obligations to be paid to other entities that could exert significant influence over the reporting entity. This element is used when there is no other more specific or appropriate element.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 95

-Paragraph 28

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 28

-Subparagraph (a)

-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

+ Details

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