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Savings and Retirement Plans
9 Months Ended
Dec. 31, 2011
Savings and Retirement Plans [Abstract]  
Savings and Retirement Plans
12. Savings and Retirement Plans

We sponsor various plans for eligible employees in the United States, the United Kingdom (UK), and The Netherlands. Our retirement savings plan in the United States conforms to Section 401(k) of the Internal Revenue Code and participation is available to substantially all employees. We may also make discretionary contributions ratably to all eligible employees. We made discretionary contributions to the U.S. plan of $157,000 for the nine months ended December 31, 2011.  No discretionary contributions were made to the U.S. plan for the nine months ended December 31, 2010.
 
Our international subsidiaries have defined benefit retirement plans for eligible employees.  These plans provide benefits based on the employee's years of service and compensation during the years immediately preceding retirement, termination, disability, or death, as defined in the plans.  We froze the UK subsidiary's defined benefit plan on December 31, 2004.  On March 10, 2005, we established a defined contribution plan for the UK subsidiary.  As of April 1, 2005 we closed The Netherlands subsidiary's defined benefit retirement plan for new employees and established a defined contribution plan for them.

The cost for our defined benefit retirement plans in The Netherlands and the United Kingdom includes the following components for the three and nine month periods ended December 31:

   
Three Months Ended
December 31
  
Nine Months Ended
December 31
 
   
2011
  
2010
  
2011
  
2010
 
              
Gross service cost
 $19,000  $25,000  $58,000  $71,000 
Interest cost
  30,000   29,000   93,000   84,000 
Expected return on assets
  (5,000)  (13,000)  (15,000)  (37,000)
Amortization
  1,000   4,000   5,000   13,000 
Net periodic retirement cost
 $45,000  $45,000  $141,000  $131,000 
 
 
Major assumptions used in the above calculations for the nine month periods ended December 31 include:

   
2011
  
2010
 
        
Discount rate
  5.50-6.20%  4.70-5.50%
Expected return on assets
  5.00-6.20%  4.70-5.00%
Expected rate of increase in future compensation:
        
General
  3.00%  3.00%
Individual
  0.00-3.00%  0.00-3.00%
 
Both the Netherlands and United Kingdom pension plans are in an underfunded position and the funded status of the plans is shown as accrued pension liability. We made aggregate contributions of approximately $163,000 and $144,000, respectively, during the nine months ended December 31, 2011 and 2010 to the two defined benefit plans.