Annual report pursuant to Section 13 and 15(d)

Note 3 - Consolidated Financial Statement Details (Details)

v2.4.1.9
Note 3 - Consolidated Financial Statement Details (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 28, 2014
Dec. 29, 2013
Dec. 30, 2012
Note 3 - Consolidated Financial Statement Details (Details) [Line Items]      
Inventory Write-down $ 475us-gaap_InventoryWriteDown $ 623us-gaap_InventoryWriteDown  
Depreciation 3,997us-gaap_Depreciation 3,883us-gaap_Depreciation 3,231us-gaap_Depreciation
Machinery and Equipment [Member] | Assets Under Capital Lease [Member]      
Note 3 - Consolidated Financial Statement Details (Details) [Line Items]      
Depreciation 694us-gaap_Depreciation
/ us-gaap_FairValueByAssetClassAxis
= smtx_AssetsUnderCapitalLeaseMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_MachineryAndEquipmentMember
769us-gaap_Depreciation
/ us-gaap_FairValueByAssetClassAxis
= smtx_AssetsUnderCapitalLeaseMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_MachineryAndEquipmentMember
598us-gaap_Depreciation
/ us-gaap_FairValueByAssetClassAxis
= smtx_AssetsUnderCapitalLeaseMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_MachineryAndEquipmentMember
Machinery and Equipment [Member]      
Note 3 - Consolidated Financial Statement Details (Details) [Line Items]      
Capital Leased Assets, Gross 3,495us-gaap_CapitalLeasedAssetsGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_MachineryAndEquipmentMember
5,194us-gaap_CapitalLeasedAssetsGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_MachineryAndEquipmentMember
 
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation 916us-gaap_CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_MachineryAndEquipmentMember
1,624us-gaap_CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_MachineryAndEquipmentMember
 
Computer Equipment [Member] | Assets Under Capital Lease [Member]      
Note 3 - Consolidated Financial Statement Details (Details) [Line Items]      
Depreciation 151us-gaap_Depreciation
/ us-gaap_FairValueByAssetClassAxis
= smtx_AssetsUnderCapitalLeaseMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ComputerEquipmentMember
144us-gaap_Depreciation
/ us-gaap_FairValueByAssetClassAxis
= smtx_AssetsUnderCapitalLeaseMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ComputerEquipmentMember
122us-gaap_Depreciation
/ us-gaap_FairValueByAssetClassAxis
= smtx_AssetsUnderCapitalLeaseMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ComputerEquipmentMember
Computer Equipment [Member]      
Note 3 - Consolidated Financial Statement Details (Details) [Line Items]      
Capital Leased Assets, Gross 498us-gaap_CapitalLeasedAssetsGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ComputerEquipmentMember
481us-gaap_CapitalLeasedAssetsGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ComputerEquipmentMember
 
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation 417us-gaap_CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ComputerEquipmentMember
266us-gaap_CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ComputerEquipmentMember
 
Leasehold Improvements [Member] | Assets Under Capital Lease [Member]      
Note 3 - Consolidated Financial Statement Details (Details) [Line Items]      
Depreciation 15us-gaap_Depreciation
/ us-gaap_FairValueByAssetClassAxis
= smtx_AssetsUnderCapitalLeaseMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LeaseholdImprovementsMember
15us-gaap_Depreciation
/ us-gaap_FairValueByAssetClassAxis
= smtx_AssetsUnderCapitalLeaseMember
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LeaseholdImprovementsMember
 
Leasehold Improvements [Member]      
Note 3 - Consolidated Financial Statement Details (Details) [Line Items]      
Capital Leased Assets, Gross 73us-gaap_CapitalLeasedAssetsGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LeaseholdImprovementsMember
73us-gaap_CapitalLeasedAssetsGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LeaseholdImprovementsMember
 
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation $ 42us-gaap_CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LeaseholdImprovementsMember
$ 27us-gaap_CapitalLeasesLesseeBalanceSheetAssetsByMajorClassAccumulatedDeprecation
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LeaseholdImprovementsMember