Statement of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Cash flows from operating activities:
Net Income	$ 15,944us-gaap_NetIncomeLoss	$ 5,914us-gaap_NetIncomeLoss
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	13,231	14,706
Provision for receivable allowances	7,264us-gaap_ProvisionForDoubtfulAccounts	6,389us-gaap_ProvisionForDoubtfulAccounts
Net change in inventory provision	2,072us-gaap_InventoryWriteDown	1,392us-gaap_InventoryWriteDown
Foreign currency adjustments on intercompany amounts	(3,078)us-gaap_OtherNoncashIncomeExpense	760us-gaap_OtherNoncashIncomeExpense
Stock-based compensation	2,127us-gaap_ShareBasedCompensation	2,033us-gaap_ShareBasedCompensation
Loss (gain) on investments and disposal of fixed assets	838us-gaap_GainLossOnSaleOfOtherAssets	(256)us-gaap_GainLossOnSaleOfOtherAssets
Changes in operating assets and liabilities, net of business acquired:
Accounts receivable	(1,110)	(6,779)
Inventories	(3,941)us-gaap_IncreaseDecreaseInInventories	(6,665)us-gaap_IncreaseDecreaseInInventories
Prepaid expenses and other current assets	5,464	(584)
Other assets	615	(942)
Accounts payable	(4,934)	(146)
Accrued expenses and other liabilities	(374)	2,278
Pension liabilities	(1,021)	(1,146)
Net cash provided by (used in) operating activities	33,097	16,954
Cash flows from investing activities:
Change in restricted cash	40	(23)
Purchase of business, net of cash and cash equivalents acquired and installment payments	(2,297)	(20,000)
Purchases of investments	(5,887)us-gaap_PaymentsToAcquireInvestments	0us-gaap_PaymentsToAcquireInvestments
Purchases of property and equipment	(5,468)	(5,813)
Proceeds from sale of investments	54	324
Net cash provided by (used in) investing activities	(13,558)	(25,512)
Cash flows from financing activities:
Principal payments on capital lease obligations	(1,965)	(1,903)
Repayments of loans and notes payable	(914)us-gaap_RepaymentsOfDebt	(516)us-gaap_RepaymentsOfDebt
Repayments of installment payment of business acquisition	(30,000)us-gaap_RepaymentsOfOtherShortTermDebt	0us-gaap_RepaymentsOfOtherShortTermDebt
Proceeds from loans	30,000	0
Proceeds from employee equity plans	2,360	3,456
Purchases of treasury stock	0	(493)
Payment of cash dividends to stockholders	(2,047)us-gaap_PaymentsOfDividendsCommonStock	(2,803)us-gaap_PaymentsOfDividendsCommonStock
Net cash provided by (used in) financing activities	(2,566)	(2,259)
Effect of exchange rate fluctuations on cash and cash equivalents	(2,422)	2,508
Net increase (decrease) in cash and cash equivalents	14,551	(8,309)
Cash and cash equivalents at beginning of period	98,438	107,116
Cash and cash equivalents at end of period	$ 112,989	$ 98,807

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.