Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Apr. 30, 2012	Apr. 30, 2011
Cash flows from operating activities:
Net income	$ 17,384	$ 12,750
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	12,397	11,876
Amortization of debt issuance costs and debt discount	238	238
Share-based compensation	2,049	1,478
Provision for bad debts	108	101
Write-down for inventory obsolescence	707	113
Loss (profit) on sale of leased assets	(603)	(2,379)
Loss (gain) on sale of assets	91	96
Excess tax benefit from exercise of stock options	(1,207)	(771)
Changes in operating assets and liabilities:
Accounts receivable and investment in sales-type leases and notes receivable	(1,970)	(1,221)
Inventories	(4,248)	(5,668)
Accounts payable and accrued liabilities	(2,580)	(16,533)
Customer deposits and deferred revenue	4	777
Prepaid income taxes	(3,377)	2,305
Income taxes payable	1,466	2,404
Deferred income taxes	2,277	1,340
Other	(2,132)	9,604
Net cash provided by operating activities	20,604	16,510
Cash flows from investing activities:
Proceeds from sale of leased assets	1,029	3,810
Proceeds from sale of assets		76
Payments for products leased and held for lease	(6,706)	(7,263)
Purchases of property and equipment	(4,240)	(2,001)
Purchases of intangible assets	(4,103)	(6,145)
Acquisition of business	(5,500)	(6,499)
Other	(454)	(446)
Net cash used in investing activities	(19,974)	(18,468)
Cash flows from financing activities:
Proceeds from Revolver	6,000	16,500
Debt payments on Revolver	(22,000)	(10,000)
Proceeds from issuances of common stock, net	14,128	1,610
Excess tax benefit from exercise of stock options	1,207	771
Other	(30)	(20)
Net cash provided by (used in) financing activities	(695)	8,861
Effect of exchange rate changes on cash and cash equivalents	840	92
Net increase in cash and cash equivalents	775	6,995
Cash and cash equivalents, beginning of period	22,189	9,988
Cash and cash equivalents, end of period	$ 22,964	$ 16,983