Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities:
Net income	$ 3,019	$ 2,985
Adjustments to reconcile net income to net cash provided by operating activities, net of assets acquired and liabilities assumed:
Depreciation and amortization	2,832	3,784
Provision for receivable allowances	1,610	1,407
Net change in inventory provision	425	300
Stock-based compensation	855	739
Loss (gain) on investments	(169)	147
Foreign currency adjustments on intercompany amounts and other non-cash items	(111)	248
Changes in operating assets and liabilities, net of business acquired:
Accounts receivable	(4,652)	(630)
Inventories	2,083	611
Prepaid expenses and other current assets	130	(779)
Accounts payable	559	609
Accrued expenses and other liabilities	1,113	329
Pension liabilities	(198)	(301)
Net cash provided by operating activities	7,496	9,449
Cash flows from investing activities:
Change in restricted cash	5	(5)
Purchase of businesses, net of cash and cash equivalents acquired and installment payments		(14,571)
Purchases of plant and equipment	(3,477)	(3,696)
Net cash used in investing activities	(3,472)	(18,272)
Cash flows from financing activities:
Principal payments on capital lease obligations		(321)
Repayments of loans and notes payable	(7,970)	(449)
Proceeds from loans		3,317
Proceeds from employee equity plans	694	2,468
Net cash provided by (used in) financing activities	(7,276)	5,015
Effect of exchange rate fluctuations on cash and cash equivalents	(1,161)	860
Net decrease in cash and cash equivalents	(4,413)	(2,948)
Cash and cash equivalents at beginning of period	155,806	121,164
Cash and cash equivalents at end of period	$ 151,393	$ 118,216