Quarterly report pursuant to Section 13 or 15(d)

Long-Term Debt (Details) - Thermon Holding Corp

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Long-Term Debt (Details) - Thermon Holding Corp (USD $)
 3 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Mar. 31, 2012
Long-Term Debt      
Long-term debt $ 118,145,000   $ 139,145,000
Less current portion     (21,000,000)
Long-term debt, noncurrent 118,145,000   118,145,000
Outstanding borrowings 12,769,000    
Cash interest expense 4,367,000 6,790,000  
Partial redemptions 21,000,000 42,000,000  
Cash premiums paid on redemption 630,000 1,260,000  
Foreign Currency Transaction Risk      
Maximum term of forward contracts 90 days    
Notional amounts of forward contracts held to sell U.S. dollars in exchange for other major international currencies 10,697,000   14,429,000
Net foreign exchange transaction losses 52,000 (92,000)  
Gain (loss) on foreign currency forward contracts 28,000 (188,000)  
9.500% Senior Secured Notes, due May 2017
      
Long-Term Debt      
Interest rate (as a percent) 9.50%    
Long-term debt 118,145,000   139,145,000
Cash interest expense 11,200,000    
Partial redemptions 21,000,000 42,000,000  
Deferred debt amortization 871,000 1,871,000  
Revolving credit facility
      
Long-Term Debt      
Borrowing base as a percentage of eligible accounts receivable 85.00%    
Borrowing base as a percentage of eligible inventory 60.00%    
Borrowing base as a percentage of net orderly liquidation value of eligible equipment 85.00%    
Borrowing base as a percentage of fair market value of eligible owned real property 50.00%    
Capacity available under credit facility 26,700,000    
Outstanding borrowings 12,800,000    
Interest rate at period end (as a percent) 5.00%    
Annual commitment fee on unutilized commitments (as a percent) 0.75%    
Thermon Holding Corp.
      
Long-Term Debt      
Long-term debt 118,145,000   139,145,000
Less current portion     (21,000,000)
Long-term debt, noncurrent 118,145,000   118,145,000
Outstanding borrowings 12,769,000    
Cash interest expense 4,367,000 6,790,000  
Partial redemptions 21,000,000 42,000,000  
Cash premiums paid on redemption 630,000 1,260,000  
Foreign Currency Transaction Risk      
Maximum term of forward contracts 90 days    
Notional amounts of forward contracts held to sell U.S. dollars in exchange for other major international currencies 10,697,000   14,429,000
Net foreign exchange transaction losses 52,000 (92,000)  
Gain (loss) on foreign currency forward contracts 28,000 (188,000)  
Thermon Holding Corp. | 9.500% Senior Secured Notes, due May 2017
      
Long-Term Debt      
Interest rate (as a percent) 9.50%    
Long-term debt 118,145,000   139,145,000
Cash interest expense 11,200,000    
Partial redemptions 21,000,000 42,000,000  
Cash premiums paid on redemption 630,000 1,260,000  
Deferred debt amortization 871,000 1,871,000  
Thermon Holding Corp. | Revolving credit facility
      
Long-Term Debt      
Term of debt 5 years    
Debt raised by Thermon Industries, Inc. 40,000,000    
Maximum borrowing capacity available subject to borrowing base availability 20,000,000    
Borrowing base as a percentage of eligible accounts receivable 85.00%    
Borrowing base as a percentage of eligible inventory 60.00%    
Borrowing base as a percentage of net orderly liquidation value of eligible equipment 85.00%    
Borrowing base as a percentage of fair market value of eligible owned real property 50.00%    
Capacity available under credit facility 26,700,000    
Outstanding borrowings $ 12,800,000    
Interest rate at period end (as a percent) 5.00%    
Annual commitment fee on unutilized commitments (as a percent) 0.75%