CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2019	Apr. 30, 2018
Net income including noncontrolling interests	$ 3,715	$ 10,352
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation	6,292	5,920
Amortization of operating lease right-of-use assets	1,333
Income from equity method investments	(126)	(697)
Interest income from investments	(25)	(341)
Deferred income tax	(3,619)	(2,271)
Stock based compensation expense	128	71
Gain on disposal of property and equipment		(8)
Changes in assets and liabilities:
Accounts receivable	(285)	(8,350)
Inventories	(1,673)	(5,333)
Other assets	(75)	(1,894)
Accounts payable, trade	(760)	1,011
Other liabilities	(3,365)	(1,980)
Net cash provided by (used in) operating activities	1,540	(3,520)
Cash flows from investing activities:
Capital expenditures	(632)	(3,061)
Purchase of short-term investments		(111,154)
Sale of short-term investments	15,000
Restricted investments and deposits		5
Other	7	6
Net cash provided by (used in) investing activities	14,375	(114,204)
Cash flows from financing activities:
Treasury stock acquired		(8,586)
Payments to noncontrolling interests holders	(87)
Capital contributions from minority investor	146	110
Net cash provided by (used in) financing activities	59	(8,476)
Net increase (decrease) in cash, cash equivalents and restricted cash	15,974	(126,200)
Cash, cash equivalents and restricted cash, beginning of period	188,812	191,342
Cash, cash equivalents and restricted cash, end of period	204,786	65,142
Non cash investing activities – Accrued capital expenditures	147	142
Non cash financing activities – Stock awards accrued	91
Non cash financing activities – Accrued common stock repurchases		542
Initial right-of-use assets and liabilities recorded upon adoption of ASC 842	20,918
Cash and cash equivalents	204,704	64,246
Restricted cash	$ 82	$ 896