v2.4.0.8

3. Interest, Advances and Promissory Notes Payable (Details) - Summary of Advance Payable Activity (USD $) | Sep. 30, 2014 | Dec. 31, 2012
--- | --- | ---
Summary of Advance Payable Activity [Abstract] |  |
Balance |  | $ 105,613
Advances accrued | 30,000 |
Advances repaid from proceeds of line of credit | (20,000) |
Transfer of balance to accounts payable | $ (115,613) |

X
- Definition The entire disclosure for advances accrued. + References No definition available. + Details
Name: | alrt_AdvancesAccrued
Namespace Prefix: | alrt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Including the current and noncurrent portions, aggregate carrying amount of all types of advances payable, as of the balance sheet date. + References No definition available. + Details
Name: | alrt_AdvancesPayable
Namespace Prefix: | alrt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The cash outflow during the period from the advance repaid for additional borrowings on the credit facility during the period. + References No definition available. + Details
Name: | alrt_AdvancesRepaidFromProceedsOfLineOfCredit
Namespace Prefix: | alrt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | alrt_SummaryOfAdvancePayableActivityAbstract
Namespace Prefix: | alrt_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Transfer of balance from advances payable to accounts payable. + References No definition available. + Details
Name: | alrt_TransferofBalancetoAccountsPayable
Namespace Prefix: | alrt_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant