Fair Value Measurements Warrants (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Fair Value Disclosures [Abstract]
Fair Value Adjustment Of Warrants, Income Statement	$ 11	$ (1,520)	$ (327)	$ (1,113)

Amount of expense (income) related to adjustment to fair value of warrant liability.

No definition available.

Name:	tti_FairValueAdjustmentOfWarrantsIncomeStatement
Namespace Prefix:	tti_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration