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Savings and Retirement Plans (Details) (USD $)
12 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Mar. 31, 2012
Retirement Plans Disclosure [Line Items]      
Employer discretionary contribution amount to US plan $ 224,000 $ 228,000 $ 218,000
Total contribution expense associated with the plan 22,000 16,000 12,000
Cumulative gains losses as percentage of benefit obligations or plan assets (in hundredths) 10.00%    
The Netherlands Defined Benefit Plan [Member]
     
Benefit payments in subsequent fiscal years [Abstract]      
2015 4,000    
2016 23,000    
2017 23,000    
2018 24,000    
2019 24,000    
2020 to 2024 172,000    
Total benefit payments 270,000    
Contributions by employer in next fiscal year 150,000    
Changes in benefit obligations [Roll Forward]      
Projected benefit obligation, beginning of year 2,624,000 1,572,000  
Service cost 126,000 74,000  
Interest cost 108,000 88,000 86,000
Benefits paid (1,000) 0  
Value transfers (57,000) 0  
Plan Amendment (46,000) 0  
Actuarial result 384,000 956,000  
Foreign currency translation 205,000 (66,000)  
Projected benefit obligation, end of year 3,343,000 2,624,000 1,572,000
Changes in plan assets [Roll Forward]      
Plan assets, beginning of year 1,993,000 1,217,000  
Contributions to plan 216,000 122,000 154,000
Management cost (15,000) (11,000)  
Actual return on assets 370,000 716,000  
Benefits paid (1,000) 0  
Value transfers (57,000) 0  
Foreign currency translation 159,000 (51,000)  
Plan assets, end of year 2,665,000 1,993,000 1,217,000
Amount recognized in other comprehensive loss [Abstract]      
Unrecognized net prior service benefit (348,000) (313,000)  
Unrecognized net losses 711,000 612,000  
Additional other comprehensive loss (gross of deferred taxes) 363,000 299,000  
Projected benefit obligation, accumulated benefit obligations and the fair value plan assets [Abstract]      
Projected benefit obligation 3,343,000 2,624,000 1,572,000
Accumulated benefit obligation 2,704,000 2,083,000  
Fair value of plan assets 2,665,000 1,993,000 1,217,000
Excess of the projected benefit obligation over the fair value of the plan assets 678,000 631,000  
Components of benefit costs for defined benefit retirement plans [Abstract]      
Gross service cost, net of employee contribution 113,000 60,000 58,000
Interest cost 108,000 88,000 86,000
Management cost 11,000 11,000 14,000
Expected return on assets (72,000) 2,000 9,000
Amortization 0 (11,000) (6,000)
Net periodic retirement cost 160,000 150,000 161,000
Major assumptions used in the calculations [Abstract]      
Discount rate (in hundredths) 3.40% 3.90%  
Expected return on assets (in hundredths) 3.40% 3.90%  
Expected rate of increase in future compensation [Abstract]      
Expected rate of increase in future compensation, General (in hundredths) 2.50% 2.50%  
Fair value of the pension plan assets [Abstract]      
Fair value of pension plan assets 2,665,000 1,993,000 1,217,000
The Netherlands Defined Benefit Plan [Member] | Minimum [Member]
     
Expected rate of increase in future compensation [Abstract]      
Expected rate of increase in future compensation, Individual (in hundredths) 0.00% 0.00%  
The Netherlands Defined Benefit Plan [Member] | Maximum [Member]
     
Expected rate of increase in future compensation [Abstract]      
Expected rate of increase in future compensation, Individual (in hundredths) 3.00% 3.00%  
The Netherlands Defined Benefit Plan [Member] | Other Contracts [Member]
     
Changes in plan assets [Roll Forward]      
Plan assets, beginning of year 1,993,000    
Plan assets, end of year 2,665,000 1,993,000  
Projected benefit obligation, accumulated benefit obligations and the fair value plan assets [Abstract]      
Fair value of plan assets 2,665,000 1,993,000  
Allocation of pension plan assets [Abstract]      
Target Allocation (in hundredths) 100.00% 100.00%  
Actual Allocation (in hundredths) 100.00% 100.00%  
Fair value of the pension plan assets [Abstract]      
Fair value of pension plan assets 2,665,000 1,993,000  
Reconciliation of beginning and ending balances for Level 3 assets [Roll Forward]      
Beginning balance at beginning of period 1,996,000    
Loss recognized in earnings 57,000    
Unrealized actuarial gain recognized in other comprehensive loss 296,000    
Purchases 215,000    
Sales (1,000)    
Transfers (57,000)    
Unrealized foreign currency translation loss recognized in other comprehensive loss 159,000    
Ending balance at end of period 2,665,000 1,996,000  
The Netherlands Defined Benefit Plan [Member] | Other Contracts [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
     
Changes in plan assets [Roll Forward]      
Plan assets, end of year 0 (3,000)  
Projected benefit obligation, accumulated benefit obligations and the fair value plan assets [Abstract]      
Fair value of plan assets 0 (3,000)  
Fair value of the pension plan assets [Abstract]      
Fair value of pension plan assets 0 (3,000)  
The Netherlands Defined Benefit Plan [Member] | Other Contracts [Member] | Significant Observable Inputs (Level 2) [Member]
     
Changes in plan assets [Roll Forward]      
Plan assets, end of year 0 0  
Projected benefit obligation, accumulated benefit obligations and the fair value plan assets [Abstract]      
Fair value of plan assets 0 0  
Fair value of the pension plan assets [Abstract]      
Fair value of pension plan assets 0 0  
The Netherlands Defined Benefit Plan [Member] | Other Contracts [Member] | Significant Unobservable Inputs (Level 3) [Member]
     
Changes in plan assets [Roll Forward]      
Plan assets, end of year 2,665,000 1,996,000  
Projected benefit obligation, accumulated benefit obligations and the fair value plan assets [Abstract]      
Fair value of plan assets 2,665,000 1,996,000  
Fair value of the pension plan assets [Abstract]      
Fair value of pension plan assets 2,665,000 1,996,000  
The UK Defined Benefit Plan [Member]
     
Benefit payments in subsequent fiscal years [Abstract]      
2015 0    
2016 0    
2017 119,000    
2018 0    
2019 184,000    
2020 to 2024 816,000    
Total benefit payments 1,119,000    
Contributions by employer in next fiscal year 47,000    
Changes in benefit obligations [Roll Forward]      
Projected benefit obligation, beginning of year 665,000 733,000  
Service cost 5,000 5,000  
Interest cost 33,000 35,000 36,000
Other (5,000) (5,000)  
Actuarial result (7,000) (69,000)  
Foreign currency translation 64,000 (34,000)  
Projected benefit obligation, end of year 755,000 665,000 733,000
Changes in plan assets [Roll Forward]      
Plan assets, beginning of year 636,000 614,000  
Contributions to plan 43,000 34,000 35,000
Management cost (5,000) (5,000)  
Actual return on assets 19,000 24,000  
Foreign currency translation 63,000 (31,000)  
Plan assets, end of year 756,000 636,000 614,000
Amount recognized in other comprehensive loss [Abstract]      
Unrecognized net losses 130,000 130,000  
Projected benefit obligation, accumulated benefit obligations and the fair value plan assets [Abstract]      
Projected benefit obligation 755,000 665,000 733,000
Accumulated benefit obligation 755,000 665,000  
Fair value of plan assets 756,000 636,000 614,000
Excess of the projected benefit obligation over the fair value of the plan assets 1,000 29,000  
Components of benefit costs for defined benefit retirement plans [Abstract]      
Gross service cost, net of employee contribution 5,000 5,000 5,000
Interest cost 33,000 35,000 36,000
Expected return on assets (21,000) (21,000) (29,000)
Amortization 7,000 15,000 12,000
Net periodic retirement cost 24,000 34,000 24,000
Major assumptions used in the calculations [Abstract]      
Discount rate (in hundredths) 4.60% 4.80%  
Expected return on assets (in hundredths) 3.70% 3.10%  
Fair value of the pension plan assets [Abstract]      
Fair value of pension plan assets 756,000 636,000 614,000
The UK Defined Benefit Plan [Member] | Deposit Administration Contract [Member]
     
Changes in plan assets [Roll Forward]      
Plan assets, beginning of year 636,000    
Plan assets, end of year 756,000 636,000  
Projected benefit obligation, accumulated benefit obligations and the fair value plan assets [Abstract]      
Fair value of plan assets 756,000 636,000  
Allocation of pension plan assets [Abstract]      
Target Allocation (in hundredths) 100.00% 100.00%  
Actual Allocation (in hundredths) 100.00% 100.00%  
Fair value of the pension plan assets [Abstract]      
Fair value of pension plan assets 756,000 636,000  
The UK Defined Benefit Plan [Member] | Deposit Administration Contract [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
     
Changes in plan assets [Roll Forward]      
Plan assets, end of year 0 0  
Projected benefit obligation, accumulated benefit obligations and the fair value plan assets [Abstract]      
Fair value of plan assets 0 0  
Fair value of the pension plan assets [Abstract]      
Fair value of pension plan assets 0 0  
The UK Defined Benefit Plan [Member] | Deposit Administration Contract [Member] | Significant Observable Inputs (Level 2) [Member]
     
Changes in plan assets [Roll Forward]      
Plan assets, end of year 756,000 636,000  
Projected benefit obligation, accumulated benefit obligations and the fair value plan assets [Abstract]      
Fair value of plan assets 756,000 636,000  
Fair value of the pension plan assets [Abstract]      
Fair value of pension plan assets 756,000 636,000  
The UK Defined Benefit Plan [Member] | Deposit Administration Contract [Member] | Significant Unobservable Inputs (Level 3) [Member]
     
Changes in plan assets [Roll Forward]      
Plan assets, end of year 0 0  
Projected benefit obligation, accumulated benefit obligations and the fair value plan assets [Abstract]      
Fair value of plan assets 0 0  
Fair value of the pension plan assets [Abstract]      
Fair value of pension plan assets $ 0 $ 0