Name:	tgx_AccountsReceivableAllowanceForDoubtfulAccountsWriteOffOfUncollectible
Namespace Prefix:	tgx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Valuation allowance for receivables due from a customer that was expected to be uncollectible.

No definition available.

Name:	tgx_AllowanceForDoubtfulAccounts
Namespace Prefix:	tgx_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	instant

Percentage of the portion of accounts receivables from the consolidated accounts receivables.

No definition available.

Name:	tgx_PercentageOfConsolidatedAccountsReceivableFromCustomer
Namespace Prefix:	tgx_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Percentage of the amount due from customers or clients for goods or services that have been delivered or sold in the normal course of business, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection.

No definition available.

Name:	tgx_PercentageOfReportingSegmentAccountsReceivableFromCustomer
Namespace Prefix:	tgx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Percentage of revenue generated from a major external customer that accounts for 10 percent or more of an entity's revenues.

No definition available.