Stock Appreciation Rights (Details) (Stock Appreciation Rights (SARs) [Member], USD $)	3 Months Ended	9 Months Ended
Jan. 31, 2014	Jan. 31, 2014
SARS Valuation Assumptions [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	280,000	280,000
Stock Appreciation Rights, Weighted Average Grant Price	$ 0.415	$ 0.415
Stock Appreciation Rights, Weighted Average Contractual Life Remaining	0.290	0.290
Stock Appreciation Rights, Weighted Average Market Price		$ 1.194
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate		136.35%
Weighted Average Expected Life	0.240ttlo_WeightedAverageExpectedLife	0.240ttlo_WeightedAverageExpectedLife
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate		0.00%
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Dividend Rate		0.00%
Stock Appreciation Rights, Weighted Average Fair Value Price		$ 0.710
Weighted Average Aggregate Fair Value		$ 213,000ttlo_WeightedAverageAggregateFairValue
Weighted Average Aggregate Intrinsic Value		204,000
Stock Appreciation Rights Recovery	(69,000)ttlo_StockAppreciationRightsRecovery	148,000ttlo_StockAppreciationRightsRecovery
Unrecognized Compensation Expense Related to Non-Vested SARS Granted		0
Expected Period to Recognize Compensation Expense Related to Non-Vested SARSs Granted	0.00	0.00
Deferred Compensation Share-based Arrangements, Liability, Current and Noncurrent	$ 213,000	$ 213,000
Maximum [Member]
SARS Valuation Assumptions [Line Items]
Stock Appreciation Rights, Upper Range of Grant Price	$ 0.695	$ 0.695
Minimum [Member]
SARS Valuation Assumptions [Line Items]
Stock Appreciation Rights, Lower Range of Grant Price	$ 0.208	$ 0.208

Expected Period to Recognize Compensation Expense Related to Non-Vested SARSs Granted

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- Definition

Stock Appreciation Rights, Lower Range of Grant Price

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- Definition

Stock Appreciation Rights Recovery - Amount recovered due to termination of directors' stock appreciation rights plan.

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- Definition

Stock Appreciation Rights, Upper Range of Grant Price

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- Definition

Stock Appreciation Rights, Weighted Average Contractual Life Remaining

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- Definition

Stock Appreciation Rights, Weighted Average Fair Value Price

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- Definition

Stock Appreciation Rights, Weighted Average Grant Price

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- Definition

Stock Appreciation Rights, Weighted Average Market Price

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- Definition

Unrecognized Compensation Expense Related to Non-Vested SARS Granted

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- Definition

Weighted Average Aggregate Fair Value

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Weighted Average Aggregate Intrinsic Value

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Weighted Average Expected Life

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- Definition

Aggregate carrying value as of the balance sheet date of the liabilities for stock option plans and other equity-based compensation arrangements.

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- Definition

The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The risk-free interest rate assumption that is used in valuing an option on its own shares.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)(iv)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Weighted average expected volatility rate of share-based compensation awards.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)(ii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(i)-(ii)

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