Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Apr. 30, 2013	Apr. 30, 2012
Cash flows from operating activities
Net income (loss)	$ 1,033	$ (847)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation and amortization	3,128	2,053
Equity based compensation	1,980	1,511
Tax benefit from exercise/vesting of equity awards	1,989	730
Deferred financing charges	165	59
Equity loss in joint venture		286
Changes in operating assets and liabilities:
Accounts receivable, net	26,234	(14,020)
Inventories	38,645	44,766
Income taxes, net	(14,420)	(6,796)
Prepaid expenses and other current assets	(4,656)	(2,890)
Other assets, net	(11,646)	(8)
Accounts payable, accrued expenses and other liabilities	(56,614)	(63,141)
Net cash used in operating activities	(14,162)	(38,297)
Cash flows from investing activities
Investment in equity of joint venture		(250)
Capital expenditures	(4,579)	(1,906)
Net cash used in investing activities	(4,579)	(2,156)
Cash flows from financing activities
Proceeds from notes payable, net	11,088	53,023
Proceeds from exercise of equity awards	236	158
Excess tax benefit from exercise/vesting of equity awards	1,292	946
Taxes paid for net share settlement	(946)
Loss attributable to noncontrolling interest	85
Net cash provided by financing activities	11,755	54,127
Foreign currency translation adjustments	246	2
Net (decrease) increase in cash and cash equivalents	(6,740)	13,676
Cash and cash equivalents at beginning of period	27,360	24,660
Cash and cash equivalents at end of period	20,620	38,336
Cash paid during the period for:
Interest	1,805	989
Income taxes	$ 12,962	$ 4,419