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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Inventories) (Details) (USD $)
3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Dec. 31, 2014
Dec. 31, 2013
Inventory [Line Items]        
Inventory write-down $ 325,000us-gaap_InventoryWriteDown $ 1,900,000us-gaap_InventoryWriteDown $ 1,911,000us-gaap_InventoryWriteDown $ 2,225,000us-gaap_InventoryWriteDown
Inventory, Net [Abstract]        
Raw Materials 6,406,000us-gaap_InventoryRawMaterialsNetOfReserves   5,198,000us-gaap_InventoryRawMaterialsNetOfReserves 6,406,000us-gaap_InventoryRawMaterialsNetOfReserves
Finished Goods 1,776,000us-gaap_InventoryFinishedGoodsNetOfReserves   1,102,000us-gaap_InventoryFinishedGoodsNetOfReserves 1,776,000us-gaap_InventoryFinishedGoodsNetOfReserves
Processing Costs 600,000idsa_InventoryProcessingCostsNetOfReserves   477,000idsa_InventoryProcessingCostsNetOfReserves 600,000idsa_InventoryProcessingCostsNetOfReserves
Total 8,782,000us-gaap_InventoryNet   6,777,000us-gaap_InventoryNet 8,782,000us-gaap_InventoryNet
Replacement parts, depreciation period     1 year  
Cost of Sales [Member]        
Inventory, Net [Abstract]        
General and administrative processing costs 599,700us-gaap_GeneralAndAdministrativeCostsInInventoryAmountIncurred
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_CostOfSalesMember
  476,700us-gaap_GeneralAndAdministrativeCostsInInventoryAmountIncurred
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_CostOfSalesMember
599,700us-gaap_GeneralAndAdministrativeCostsInInventoryAmountIncurred
/ us-gaap_IncomeStatementLocationAxis
= us-gaap_CostOfSalesMember
Stainless steel, ferrous and non-ferrous materials [Member]        
Inventory, Net [Abstract]        
Raw Materials 4,856,000us-gaap_InventoryRawMaterialsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_StainlessSteelFerrousAndNonFerrousMaterialsMember
  3,827,000us-gaap_InventoryRawMaterialsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_StainlessSteelFerrousAndNonFerrousMaterialsMember
4,856,000us-gaap_InventoryRawMaterialsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_StainlessSteelFerrousAndNonFerrousMaterialsMember
Finished Goods 1,697,000us-gaap_InventoryFinishedGoodsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_StainlessSteelFerrousAndNonFerrousMaterialsMember
  1,043,000us-gaap_InventoryFinishedGoodsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_StainlessSteelFerrousAndNonFerrousMaterialsMember
1,697,000us-gaap_InventoryFinishedGoodsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_StainlessSteelFerrousAndNonFerrousMaterialsMember
Processing Costs 600,000idsa_InventoryProcessingCostsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_StainlessSteelFerrousAndNonFerrousMaterialsMember
  477,000idsa_InventoryProcessingCostsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_StainlessSteelFerrousAndNonFerrousMaterialsMember
600,000idsa_InventoryProcessingCostsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_StainlessSteelFerrousAndNonFerrousMaterialsMember
Total 7,153,000us-gaap_InventoryNet
/ idsa_InventoryByComponantAxis
= idsa_StainlessSteelFerrousAndNonFerrousMaterialsMember
  5,347,000us-gaap_InventoryNet
/ idsa_InventoryByComponantAxis
= idsa_StainlessSteelFerrousAndNonFerrousMaterialsMember
7,153,000us-gaap_InventoryNet
/ idsa_InventoryByComponantAxis
= idsa_StainlessSteelFerrousAndNonFerrousMaterialsMember
Waste equipment machinery [Member]        
Inventory, Net [Abstract]        
Raw Materials 0us-gaap_InventoryRawMaterialsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_WasteEquipmentMachineryMember
  0us-gaap_InventoryRawMaterialsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_WasteEquipmentMachineryMember
0us-gaap_InventoryRawMaterialsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_WasteEquipmentMachineryMember
Finished Goods 49,000us-gaap_InventoryFinishedGoodsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_WasteEquipmentMachineryMember
  46,000us-gaap_InventoryFinishedGoodsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_WasteEquipmentMachineryMember
49,000us-gaap_InventoryFinishedGoodsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_WasteEquipmentMachineryMember
Processing Costs 0idsa_InventoryProcessingCostsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_WasteEquipmentMachineryMember
  0idsa_InventoryProcessingCostsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_WasteEquipmentMachineryMember
0idsa_InventoryProcessingCostsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_WasteEquipmentMachineryMember
Total 49,000us-gaap_InventoryNet
/ idsa_InventoryByComponantAxis
= idsa_WasteEquipmentMachineryMember
  46,000us-gaap_InventoryNet
/ idsa_InventoryByComponantAxis
= idsa_WasteEquipmentMachineryMember
49,000us-gaap_InventoryNet
/ idsa_InventoryByComponantAxis
= idsa_WasteEquipmentMachineryMember
Other [Member]        
Inventory, Net [Abstract]        
Raw Materials 0us-gaap_InventoryRawMaterialsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_OtherInventoryMember
  0us-gaap_InventoryRawMaterialsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_OtherInventoryMember
0us-gaap_InventoryRawMaterialsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_OtherInventoryMember
Finished Goods 30,000us-gaap_InventoryFinishedGoodsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_OtherInventoryMember
  13,000us-gaap_InventoryFinishedGoodsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_OtherInventoryMember
30,000us-gaap_InventoryFinishedGoodsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_OtherInventoryMember
Processing Costs 0idsa_InventoryProcessingCostsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_OtherInventoryMember
  0idsa_InventoryProcessingCostsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_OtherInventoryMember
0idsa_InventoryProcessingCostsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_OtherInventoryMember
Total 30,000us-gaap_InventoryNet
/ idsa_InventoryByComponantAxis
= idsa_OtherInventoryMember
  13,000us-gaap_InventoryNet
/ idsa_InventoryByComponantAxis
= idsa_OtherInventoryMember
30,000us-gaap_InventoryNet
/ idsa_InventoryByComponantAxis
= idsa_OtherInventoryMember
Total inventories for sale [Member]        
Inventory, Net [Abstract]        
Raw Materials 4,856,000us-gaap_InventoryRawMaterialsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_TotalInventoriesForSaleMember
  3,827,000us-gaap_InventoryRawMaterialsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_TotalInventoriesForSaleMember
4,856,000us-gaap_InventoryRawMaterialsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_TotalInventoriesForSaleMember
Finished Goods 1,776,000us-gaap_InventoryFinishedGoodsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_TotalInventoriesForSaleMember
  1,102,000us-gaap_InventoryFinishedGoodsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_TotalInventoriesForSaleMember
1,776,000us-gaap_InventoryFinishedGoodsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_TotalInventoriesForSaleMember
Processing Costs 600,000idsa_InventoryProcessingCostsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_TotalInventoriesForSaleMember
  477,000idsa_InventoryProcessingCostsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_TotalInventoriesForSaleMember
600,000idsa_InventoryProcessingCostsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_TotalInventoriesForSaleMember
Total 7,232,000us-gaap_InventoryNet
/ idsa_InventoryByComponantAxis
= idsa_TotalInventoriesForSaleMember
  5,406,000us-gaap_InventoryNet
/ idsa_InventoryByComponantAxis
= idsa_TotalInventoriesForSaleMember
7,232,000us-gaap_InventoryNet
/ idsa_InventoryByComponantAxis
= idsa_TotalInventoriesForSaleMember
Replacement parts [Member]        
Inventory, Net [Abstract]        
Raw Materials 1,550,000us-gaap_InventoryRawMaterialsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_ReplacementPartsInventoryMember
  1,371,000us-gaap_InventoryRawMaterialsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_ReplacementPartsInventoryMember
1,550,000us-gaap_InventoryRawMaterialsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_ReplacementPartsInventoryMember
Finished Goods 0us-gaap_InventoryFinishedGoodsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_ReplacementPartsInventoryMember
  0us-gaap_InventoryFinishedGoodsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_ReplacementPartsInventoryMember
0us-gaap_InventoryFinishedGoodsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_ReplacementPartsInventoryMember
Processing Costs 0idsa_InventoryProcessingCostsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_ReplacementPartsInventoryMember
  0idsa_InventoryProcessingCostsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_ReplacementPartsInventoryMember
0idsa_InventoryProcessingCostsNetOfReserves
/ idsa_InventoryByComponantAxis
= idsa_ReplacementPartsInventoryMember
Total $ 1,550,000us-gaap_InventoryNet
/ idsa_InventoryByComponantAxis
= idsa_ReplacementPartsInventoryMember
  $ 1,371,000us-gaap_InventoryNet
/ idsa_InventoryByComponantAxis
= idsa_ReplacementPartsInventoryMember
$ 1,550,000us-gaap_InventoryNet
/ idsa_InventoryByComponantAxis
= idsa_ReplacementPartsInventoryMember