Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details 5)

v2.4.0.6
Income Taxes (Details 5) (USD $)
12 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Mar. 31, 2011
Mar. 31, 2010
Income Tax Holiday        
Statutory tax rate (as a percent) 35.00% 35.00% 35.00%  
Unremitted earnings of the subsidiaries outside the United States        
Unremitted foreign earnings $ 60,300,000      
Deferred tax liability for foreign earnings not repatriated 0      
Reconciliation of gross unrecognized tax benefits (excluding interest and penalties)        
Beginning of fiscal year 6,321,000 5,156,000 5,010,000  
Additions for tax positions of the current year 35,000 433,000 247,000  
Additions for tax positions of prior years 37,000 820,000 29,000  
Reductions for tax positions of prior years (640,000) (39,000)    
Lapse in statute of limitations (358,000)   (130,000)  
Settlements   (49,000)    
End of fiscal year 5,395,000 6,321,000 5,156,000  
Unrecognized income tax benefits that would affect the Company's effective income tax rate, if recognized 500,000      
Estimated decrease in total unrecognized tax benefit related to uncertain tax positions 400,000      
Accrued interest and penalties 300,000 400,000    
China
       
Income Tax Holiday        
Statutory tax rate (as a percent)   12.50% 12.50% 25.00%
Realized income tax benefit from the tax holiday $ 300,000