Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Cash flows from operating activities:
Net income	$ 6,258	$ 9,322
Adjustments to reconcile net income to net cash provided by operating activities, net of assets acquired and liabilities assumed:
Depreciation and amortization	7,145	9,148
Provision for receivable allowances	2,903	5,516
Net change in inventory provision	703	1,653
Stock-based compensation	1,691	1,378
Loss (gain) on investments	650	(34)
Foreign currency adjustments on intercompany amounts and other non-cash items	719	(2,054)
Changes in operating assets and liabilities, net of business acquired:
Accounts receivable	1,239	(3,249)
Inventories	(3,218)	(5,310)
Prepaid expenses and other current assets	(634)	5,016
Other assets	(68)	790
Accounts payable	(583)	(1,067)
Accrued expenses and other liabilities	1,772	2,232
Pension liabilities	(617)	(657)
Net cash provided by operating activities	17,960	22,684
Cash flows from investing activities:
Change in restricted cash	(879)	(356)
Purchase of business, net of cash and cash equivalents acquired	(14,571)	(2,297)
Purchases of property and equipment	(4,445)	(4,609)
Changes in investments	21	54
Net cash used in investing activities	(19,874)	(7,208)
Cash flows from financing activities:
Principal payments on capital lease obligations	(419)	(1,336)
Repayments of loans and notes payable	$ (937)	(629)
Installment payment for business acquisition		(15,000)
Proceeds from loans	$ 3,317	30,000
Proceeds from employee equity plans	3,431	$ 1,430
Purchases of treasury stock	(6,440)
Payment of cash dividends to stockholders	(2,374)	$ (2,047)
Net cash provided by (used in) financing activities	(3,422)	12,418
Effect of exchange rate fluctuations on cash and cash equivalents	1,023	(1,388)
Net increase (decrease) in cash and cash equivalents	(4,313)	26,506
Cash and cash equivalents at beginning of period	121,164	98,438
Cash and cash equivalents at end of period	$ 116,851	$ 124,944