Refers to the average economic value added as a percentage of revenue.

No definition available.

Name:	ttlo_ShareBasedCompensationArrangementByShareBasedPaymentAwardAverageEconomicValueAddedAsPercentageOfRevenue
Namespace Prefix:	ttlo_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the annual growth in revenue as a percentage.

+ References

No definition available.

+ Details

Name:	ttlo_ShareBasedCompensationArrangementByShareBasedPaymentAwardCumulativeAnnualGrowthInRevenue
Namespace Prefix:	ttlo_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of employees receiving award under the equity-based compensation plan.

+ References

No definition available.

+ Details

Name:	ttlo_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfEmployeesReceivingAwardUnderPlan
Namespace Prefix:	ttlo_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

The period awards granted under equity-based compensation plan are restricted for for sale, assignment, or pledge, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	ttlo_ShareBasedCompensationArrangementByShareBasedPaymentAwardRestrictionPeriod
Namespace Prefix:	ttlo_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of noncash expense for award of restricted stock or unit under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

+ Details

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

- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(iii)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)-(ii)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Number of shares authorized for issuance under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardNumberOfSharesAuthorized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_PlanNameAxis=ttlo_RestrictedStockGrants2016Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_RestrictedStockMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

RESTRICTED STOCK AGREEMENTS (Details)		12 Months Ended
RESTRICTED STOCK AGREEMENTS (Details)	Sep. 21, 2016 employee shares	Apr. 30, 2020 USD ($) $ / shares shares	Apr. 30, 2019 USD ($) $ / shares shares	Apr. 30, 2017 shares
Share-based Compensation Arrangement by Share-based Payment Award
Stock compensation cost amortized \| $		$ 108,000	$ 108,000
Restricted Shares Under Option
Outstanding at beginning of period		730,000	730,000
Outstanding at end of period		730,000	730,000
Weighted Average Grant Price
Outstanding at beginning of period, Weighted Average Grant Price (in dollars per share) \| $ / shares		$ 0.740	$ 0.740
Outstanding at end of period, Weighted Average Grant Price (in dollars per share) \| $ / shares		$ 0.740	$ 0.740
2016 Restricted Stock Grants
Share-based Compensation Arrangement by Share-based Payment Award
Restriction period of awards	5 years
2016 Restricted Stock Grants \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award
Cumulative annual growth in revenue (as a percentage)	10.00%
Average economic value added as percentage of revenue (as a percentage)	2.00%
2016 Restricted Stock Grants \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award
Number of key employees receiving award under plan \| employee	3
Aggregate amount of restricted stock awards authorized	730,000
Restricted Shares Under Option
Granted				350,000