Annual report pursuant to Section 13 and 15(d)

Property and Equipment (Details)

v2.4.1.9
Property and Equipment (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross $ 47,534us-gaap_PropertyPlantAndEquipmentGross $ 42,075us-gaap_PropertyPlantAndEquipmentGross  
Accumulated depreciation (24,254)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment (17,514)us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment  
Property, Plant and Equipment, Net 23,280us-gaap_PropertyPlantAndEquipmentNet 24,561us-gaap_PropertyPlantAndEquipmentNet  
Depreciation 9,019us-gaap_Depreciation 7,327us-gaap_Depreciation 5,286us-gaap_Depreciation
Land      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross 0us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LandMember
172us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_LandMember
 
Building and Leasehold Improvements      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross 3,359us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= mtii_BuildingAndLeaseholdImprovementsMember
3,338us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= mtii_BuildingAndLeaseholdImprovementsMember
 
Machinery and Equipment      
Property, Plant and Equipment [Line Items]      
Property, Plant and Equipment, Gross $ 44,175us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_MachineryAndEquipmentMember
$ 38,565us-gaap_PropertyPlantAndEquipmentGross
/ us-gaap_PropertyPlantAndEquipmentByTypeAxis
= us-gaap_MachineryAndEquipmentMember