v2.4.0.6

Description of Operations and Summary of Significant Accounting Policies (Details 3) | 12 Months Ended
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Dec. 31, 2011 Y
2004 Equity Incentive Plan |
Information related to stock-based compensation |
Exercise price as a percentage of fair market value of stock | 100.00%
2008 Equity Incentive Plan |
Information related to stock-based compensation |
Exercise price as a percentage of fair market value of stock | 100.00%
Stock options |
Information related to stock-based compensation |
Stock options, contractual term (in years) | 10
Vesting period (in years) | 4 years

X
- Definition This element represents the contractual term for stock options awards granted. + References No definition available. + Details
Name: | thrx_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsContractualTerm
Namespace Prefix: | thrx_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the maximum exercise price of stock options as a percentage of the fair market value of common stock on the date of grant. + References No definition available. + Details
Name: | thrx_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsMaximumExercisePricePercentageOfFairMarketValueCommonStock
Namespace Prefix: | thrx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Description of the period of time over which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, which may be expressed in a variety of ways (for example, in years, month and year). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 123R -Paragraph A240 -Subparagraph a -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod
Namespace Prefix: | us-gaap_
Data Type: | us-types:durationStringItemType
Balance Type: | na
Period Type: | duration

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