CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jul. 31, 2014	Jul. 31, 2013
Cash flows from operating activities:
Net income including noncontrolling interests	$ 19,599	$ 20,833
Adjustments to reconcile net income to net cash (used in) operating activities:
Depreciation and amortization	6,097	5,769
Transactional losses	1,077	210
Write-down of inventories	872	691
Deferred income taxes	137	(897)
Stock-based compensation	2,612	1,625
Excess tax benefit from stock-based compensation	(1,204)	(465)
Gain on sale of an asset held for sale		(1,526)
Gain on available-for-sale securities	(131)
Changes in assets and liabilities:
Trade receivables	(22,450)	(13,625)
Inventories	(15,158)	(17,979)
Other current assets	1,444	(425)
Accounts payable	4,086	9,237
Accrued liabilities	(2,363)	(8,450)
Income taxes payable	124	5,353
Other non-current assets	(2,977)	(3,561)
Other non-current liabilities	2,556	3,015
Net cash (used in) operating activities	(5,679)	(195)
Cash flows from investing activities:
Capital expenditures	(4,294)	(10,206)
Trademarks	(32)	(164)
Proceeds from sale of an asset held for sale		2,196
Proceeds from short-term investments	33,736
Proceeds from available-for-sale securities	307
Net cash provided by / (used in) investing activities	29,717	(8,174)
Cash flows from financing activities:
Stock options exercised and other changes	108	(608)
Excess tax benefit from stock-based compensation	1,204	465
Dividends paid	(5,059)	(2,549)
Stock repurchase	(7,684)	(3,310)
Net cash (used in) financing activities	(11,431)	(6,002)
Effect of exchange rate changes on cash and cash equivalents	(617)	(2,002)
Net increase / (decrease) in cash and cash equivalents	11,990	(16,373)
Cash and cash equivalents at beginning of period	157,659	167,889
Cash and cash equivalents at end of period	$ 169,649	$ 151,516