Annual report pursuant to Section 13 and 15(d)

Note 9 - Income Taxes (Details)

v2.4.1.9
Note 9 - Income Taxes (Details) (USD $)
Dec. 28, 2014
Dec. 29, 2013
Dec. 30, 2012
Jan. 01, 2012
Jan. 02, 2011
Note 9 - Income Taxes (Details) [Line Items]          
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration $ 71,900,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration        
Unrecognized Tax Benefits that Would Impact Effective Tax Rate 290,000us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate 331,000us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate      
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued 55,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued 73,000us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAndInterestAccrued      
Deferred Tax Assets, Valuation Allowance 35,345,000us-gaap_DeferredTaxAssetsValuationAllowance 37,870,000us-gaap_DeferredTaxAssetsValuationAllowance 0us-gaap_DeferredTaxAssetsValuationAllowance 0us-gaap_DeferredTaxAssetsValuationAllowance 0us-gaap_DeferredTaxAssetsValuationAllowance
Foreign Tax Authority [Member] | Canada Revenue Agency [Member]          
Note 9 - Income Taxes (Details) [Line Items]          
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration 28,600,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_ForeignCountryMember
/ us-gaap_IncomeTaxAuthorityNameAxis
= us-gaap_CanadaRevenueAgencyMember 		       
Domestic Tax Authority [Member]          
Note 9 - Income Taxes (Details) [Line Items]          
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration 43,300,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_DomesticCountryMember 		       
Expire in 2015 [Member]          
Note 9 - Income Taxes (Details) [Line Items]          
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration 4,100,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration
/ us-gaap_TaxCreditCarryforwardAxis
= smtx_ExpireIn2015Member 		       
Expire in 2017 [Member]          
Note 9 - Income Taxes (Details) [Line Items]          
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration 1,300,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration
/ us-gaap_TaxCreditCarryforwardAxis
= smtx_ExpireIn2017Member 		       
Expire in 2018 [Member]          
Note 9 - Income Taxes (Details) [Line Items]          
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration 1,100,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration
/ us-gaap_TaxCreditCarryforwardAxis
= smtx_ExpireIn2018Member 		       
Expire in 2023 [Member]          
Note 9 - Income Taxes (Details) [Line Items]          
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration 13,700,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration
/ us-gaap_TaxCreditCarryforwardAxis
= smtx_ExpireIn2023Member 		       
Expire in 2026 [Member]          
Note 9 - Income Taxes (Details) [Line Items]          
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration 3,400,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration
/ us-gaap_TaxCreditCarryforwardAxis
= smtx_ExpireIn2026Member 		       
Expire in 2027 [Member]          
Note 9 - Income Taxes (Details) [Line Items]          
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration 500,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration
/ us-gaap_TaxCreditCarryforwardAxis
= smtx_ExpireIn2027Member 		       
Expire in 2028 [Member]          
Note 9 - Income Taxes (Details) [Line Items]          
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration 4,300,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration
/ us-gaap_TaxCreditCarryforwardAxis
= smtx_ExpireIn2028Member 		       
Expire in 2029 [Member]          
Note 9 - Income Taxes (Details) [Line Items]          
Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration $ 19,300,000us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsSubjectToExpiration
/ us-gaap_TaxCreditCarryforwardAxis
= smtx_ExpireIn2029Member