Annual report pursuant to Section 13 and 15(d)

Organization and Significant Accounting Policies (Details 2)

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Organization and Significant Accounting Policies (Details 2) (USD $)
12 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2011
Accumulated other comprehensive income (loss)      
Balance at the beginning of the period $ 12,020,000 $ 22,555,000  
Activity, net of tax (4,326,000) (10,535,000) 10,565,000
Balance at the end of the period 7,694,000 12,020,000 22,555,000
Foreign Currency Translation Gains (Losses)
     
Accumulated other comprehensive income (loss)      
Balance at the beginning of the period 18,107,000 27,076,000  
Activity, net of tax (4,569,000) (8,969,000)  
Balance at the end of the period 13,538,000 18,107,000  
Defined Benefit Post-retirement Plan Adjustments
     
Accumulated other comprehensive income (loss)      
Balance at the beginning of the period 1,995,000 2,112,000  
Activity, net of tax (177,000) (117,000)  
Balance at the end of the period 1,818,000 1,995,000  
Defined Benefit Pension Plans
     
Accumulated other comprehensive income (loss)      
Balance at the beginning of the period (8,082,000) (6,633,000)  
Activity, net of tax 420,000 (1,449,000)  
Balance at the end of the period (7,662,000) (8,082,000)  
Defined Benefit Pension Plans, tax benefit $ 700,000 $ 800,000