Represents the aggregate annual commitment as of the reporting date for future salaries (excluding bonuses) during the next fiscal year under existing employment agreements.

No definition available.

Name:	tpcs_EmployeeAgreementAnnualCommitmentForFutureSalariesDuringNextFiscalYear
Namespace Prefix:	tpcs_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

COMMITMENTS (Details) - USD ($) $ in Millions	Mar. 31, 2018	Sep. 30, 2017
Employment agreements
Aggregate commitment for vacation and holiday pay for non-executive employees		$ 0.3
Scenario, Forecast [Member]
Employment agreements
Aggregate annual commitment for future executive salaries during the next fiscal year	$ 0.5