Quarterly report pursuant to Section 13 or 15(d)

Note 2 - Revisions of Previously Issued Financial Statements (Details) - Impact on the Interim Consolidated Statements of Operations and Comprehensive Loss

v2.4.1.9
Note 2 - Revisions of Previously Issued Financial Statements (Details) - Impact on the Interim Consolidated Statements of Operations and Comprehensive Loss (USD $)
In Thousands, except Per Share data, unless otherwise specified
 3 Months Ended
Mar. 29, 2015
Mar. 30, 2014
Cost of sales $ 45,086us-gaap_CostOfRevenue $ 53,312us-gaap_CostOfRevenue
Gross profit 3,628us-gaap_GrossProfit 4,711us-gaap_GrossProfit
Operating loss (37)us-gaap_OperatingIncomeLoss (202)us-gaap_OperatingIncomeLoss
Net loss and comprehensive loss (424)us-gaap_NetIncomeLoss (779)us-gaap_NetIncomeLoss [1]
Basic and diluted loss per share (in Dollars per share)   $ (0.05)us-gaap_EarningsPerShareBasicAndDiluted
Scenario, Previously Reported [Member] | Reduction to Amortization [Member]    
Cost of sales   1,128us-gaap_CostOfRevenue
/ us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementByRestatementPeriodAndAmountAxis
= smtx_ReductionToAmortizationMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember 		[2]
Scenario, Previously Reported [Member] | Revaluation of Derivative Forward Contracts [Member]    
Cost of sales   (92)us-gaap_CostOfRevenue
/ us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementByRestatementPeriodAndAmountAxis
= smtx_RevaluationOfDerivativeForwardContractsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember 		[3]
Scenario, Previously Reported [Member]    
Gross profit   4,385us-gaap_GrossProfit
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
Operating loss   (528)us-gaap_OperatingIncomeLoss
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
Net loss and comprehensive loss   (1,105)us-gaap_NetIncomeLoss
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
Basic and diluted loss per share (in Dollars per share)   $ (0.07)us-gaap_EarningsPerShareBasicAndDiluted
/ us-gaap_StatementScenarioAxis
= us-gaap_ScenarioPreviouslyReportedMember
Restatement Adjustment [Member] | Reduction to Amortization [Member]    
Cost of sales   (175)us-gaap_CostOfRevenue
/ us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementByRestatementPeriodAndAmountAxis
= smtx_ReductionToAmortizationMember
/ us-gaap_StatementScenarioAxis
= us-gaap_RestatementAdjustmentMember 		[2]
Restatement Adjustment [Member] | Revaluation of Derivative Forward Contracts [Member]    
Cost of sales   (151)us-gaap_CostOfRevenue
/ us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementByRestatementPeriodAndAmountAxis
= smtx_RevaluationOfDerivativeForwardContractsMember
/ us-gaap_StatementScenarioAxis
= us-gaap_RestatementAdjustmentMember 		[3]
Restatement Adjustment [Member]    
Gross profit   326us-gaap_GrossProfit
/ us-gaap_StatementScenarioAxis
= us-gaap_RestatementAdjustmentMember
Operating loss   326us-gaap_OperatingIncomeLoss
/ us-gaap_StatementScenarioAxis
= us-gaap_RestatementAdjustmentMember
Net loss and comprehensive loss   326us-gaap_NetIncomeLoss
/ us-gaap_StatementScenarioAxis
= us-gaap_RestatementAdjustmentMember
Reduction to Amortization [Member]    
Cost of sales   953us-gaap_CostOfRevenue
/ us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementByRestatementPeriodAndAmountAxis
= smtx_ReductionToAmortizationMember 		[2]
Revaluation of Derivative Forward Contracts [Member]    
Cost of sales   $ (243)us-gaap_CostOfRevenue
/ us-gaap_ErrorCorrectionsAndPriorPeriodAdjustmentsRestatementByRestatementPeriodAndAmountAxis
= smtx_RevaluationOfDerivativeForwardContractsMember 		[3]
[1] Revised net loss and deficit to adjust for prior period errors. Refer to Note 2 for further details.
[2] Cost of sales has been reduced by $175 for the three months ended March 30, 2014 on the interim consolidated statement of operations and comprehensive loss related to a reduction to amortization of $175 due to an error.
[3] Cost of sales has also been reduced by $151 for the three months ended March 30, 2014 related to the revaluation of the outstanding derivative forward contracts.