Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details)

v3.4.0.3
Commitments and Contingencies (Details) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Commitments and Contingencies      
Totaled arrangements under letter of credit guarantees and performance bonds securing performance obligations $ 10,682    
Guarantee obligations secured by cash deposits 1,408    
Guarantee obligations represented by a reduction of the available amount of the company's short term and long term revolving lines of credit 978    
Cash deposits pledged as collateral on performance bonds and letters of credit 1,408 $ 1,388  
Lease expense 3,200 2,904 $ 3,033
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]      
2017 2,792    
2018 2,105    
2019 1,051    
2020 810    
2021 595    
Thereafter 1,039    
Operating Leases, Future Minimum Payments Due 8,392    
Service fee expense 1,865 2,225 2,060
Purchase Obligation, Fiscal Year Maturity [Abstract]      
2017 712    
2018 493    
2019 46    
2020 0    
2021 0    
Thereafter 0    
Purchase Obligation 1,251    
Changes in the product liability      
Balance at beginning of period 429 645 552
Provision for warranties issued 490 368 364
Settlements (459) (584) (271)
Balance at end of period 460 429 645
CHS Transactions      
Changes in the product liability      
Consideration received to settle the CHS Transactions   1,700  
Gain on settlement of related party transactions $ 0 $ 931 $ 0