Annual report pursuant to Section 13 and 15(d)

Property, Plant And Equipment (Schedule Of Property, Plant And Equipment) (Details)

v2.4.1.9
Property, Plant And Equipment (Schedule Of Property, Plant And Equipment) (Details) (USD $)
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment 45,773,000us-gaap_PropertyPlantAndEquipmentGross $ 41,711,000us-gaap_PropertyPlantAndEquipmentGross
Less accumulated depreciation (27,620,000)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment (26,770,000)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment
Property, plant and equipment, net 18,153,152us-gaap_PropertyPlantAndEquipmentNet 14,941,492us-gaap_PropertyPlantAndEquipmentNet
Land [Member]    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment 3,107,000us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LandMember 		3,116,000us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LandMember
Buildings And Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment 8,523,000us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_BuildingAndBuildingImprovementsMember 		8,528,000us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_BuildingAndBuildingImprovementsMember
Machinery And Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment 28,728,000us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_MachineryAndEquipmentMember 		25,408,000us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_MachineryAndEquipmentMember
Furniture And Fixtures [Member]    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment 3,490,000us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_FurnitureAndFixturesMember 		4,042,000us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_FurnitureAndFixturesMember
Construction In Progress [Member]    
Property, Plant and Equipment [Line Items]    
Total property, plant and equipment 1,925,000us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ConstructionInProgressMember 		$ 617,000us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_ConstructionInProgressMember
Minimum [Member] | Buildings And Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Estimated useful life 7 years  
Minimum [Member] | Machinery And Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Estimated useful life 3 years  
Minimum [Member] | Furniture And Fixtures [Member]    
Property, Plant and Equipment [Line Items]    
Estimated useful life 5 years  
Maximum [Member] | Buildings And Improvements [Member]    
Property, Plant and Equipment [Line Items]    
Estimated useful life 40 years  
Maximum [Member] | Machinery And Equipment [Member]    
Property, Plant and Equipment [Line Items]    
Estimated useful life 15 years  
Maximum [Member] | Furniture And Fixtures [Member]    
Property, Plant and Equipment [Line Items]    
Estimated useful life 10 years