Quarterly report pursuant to Section 13 or 15(d)

Income Tax (Details)

v2.4.0.6
Income Tax (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended 24 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Mar. 31, 2012
Mar. 31, 2010
Mar. 31, 2008
Income Tax (Textual) [Abstract]          
Percentage of tax credits claimed reduction       30.00% 40.00%
Research and Development Credit     $ 2,652    
Liability unrecognized tax benefit 929   905    
Additional unrecognized tax benefit     882    
Interest expenses for Uncertain Tax Positions 62 17      
Penalties related to uncertain tax positions 0 0      
Cumulative tax benefit, Net 1,723        
Charge recorded related to resolution $ 24