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BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details 2) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Property, plant and equipment    
Property, plant and equipment, gross $ 54,524us-gaap_PropertyPlantAndEquipmentGross $ 55,183us-gaap_PropertyPlantAndEquipmentGross
Less accumulated depreciation (17,483)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment (15,072)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Property, plant and equipment, net 37,041us-gaap_PropertyPlantAndEquipmentNet 40,111us-gaap_PropertyPlantAndEquipmentNet
Depreciation expense 4,553us-gaap_Depreciation 2,088us-gaap_Depreciation
Land    
Property, plant and equipment    
Property, plant and equipment, gross 996us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LandMember
654us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LandMember
Building and improvements    
Property, plant and equipment    
Property, plant and equipment, gross 9,324us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_BuildingAndBuildingImprovementsMember
9,748us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_BuildingAndBuildingImprovementsMember
Building and improvements | Minimum    
Property, plant and equipment    
Useful lives 5 years  
Building and improvements | Maximum    
Property, plant and equipment    
Useful lives 39 years  
Machinery, equipment, tools and dies    
Property, plant and equipment    
Property, plant and equipment, gross 37,426us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_MachineryAndEquipmentMember
40,237us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_MachineryAndEquipmentMember
Machinery, equipment, tools and dies | Minimum    
Property, plant and equipment    
Useful lives 3 years  
Machinery, equipment, tools and dies | Maximum    
Property, plant and equipment    
Useful lives 15 years  
Furniture, fixtures and other    
Property, plant and equipment    
Property, plant and equipment, gross $ 6,778us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= amot_FurnitureFixturesAndOtherMember
$ 4,544us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= amot_FurnitureFixturesAndOtherMember
Furniture, fixtures and other | Minimum    
Property, plant and equipment    
Useful lives 3 years  
Furniture, fixtures and other | Maximum    
Property, plant and equipment    
Useful lives 10 years