Quarterly report pursuant to Section 13 or 15(d)

Inventories (Details)

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Inventories (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Mar. 31, 2012
Inventory Disclosure [Line Items]    
Raw materials $ 14,821 $ 11,721
Work in process 1,905 1,402
Finished goods 26,014 26,424
Inventories, gross 42,740 39,547
Valuation reserves (1,166) (1,094)
Inventories, net 41,574 38,453
Thermon Holding Corp.
   
Inventory Disclosure [Line Items]    
Raw materials 14,821 11,721
Work in process 1,905 1,402
Finished goods 26,014 26,424
Inventories, gross 42,740 39,547
Valuation reserves 1,166 1,094
Inventories, net $ 41,574 $ 38,453