Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Oct. 31, 2012	Oct. 31, 2011	Oct. 31, 2010
Cash flows from operating activities:
Net Income	$ 38,606	$ 31,590	$ 23,083
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation and amortization	25,204	25,135	22,868
Amortization of debt issuance costs and debt discount	476	476	1,037
Loss on early extinguishment of debt			1,123
Share-based compensation	4,170	3,253	3,969
Provision for bad debts	163	159	541
Write-down for inventory obsolescence	22	1,065	1,019
Loss (gain) on sale of assets	344	360	(123)
Profit on sale of leased assets	(1,112)	(5,192)	(5,437)
Excess tax benefit from stock option exercises	(1,468)	(829)	(53)
Changes in operating assets and liabilities:
Accounts receivable and investment in sales-type leases and notes receivable	(13,962)	(1,349)	(4,620)
Inventories	1,143	2,277	(866)
Accounts payable and accrued liabilities	1,163	(16,400)	17,933
Customer deposits and deferred revenue	748	487	(2,688)
Income taxes	1,315	2,568	127
Deferred income taxes	(965)	5,566	3,344
Prepaid income taxes	(776)	3,828	(1,108)
Other current and non-current assets	(3,960)	10,975	(8,824)
Net cash provided by operating activities	51,111	63,969	51,325
Cash flows from investing activities:
Proceeds from sale of assets		82	142
Proceeds from sale of leased assets	2,485	7,402	8,332
Payments for products leased and held for lease	(13,625)	(16,596)	(19,956)
Purchases of property and equipment	(8,279)	(3,530)	(5,293)
Purchases of intangible assets	(4,550)	(6,818)	(2,404)
Acquisition of business	(5,500)	(6,499)
Other	(1,485)	(928)	(1,254)
Net cash used by investing activities	(30,954)	(26,887)	(20,433)
Cash flows from financing activities:
Payment on Term Loan			(64,350)
Payments on notes payable and other long-term debt		(55)	(61)
Proceeds from issuance of common stock, net	16,737	2,490	473
Debt issuance costs			(2,242)
Excess tax benefit from stock option exercises	1,468	829	53
Other	(41)		22
Net cash used by financing activities	(19,282)	(24,736)	(28,659)
Effect of exchange rate changes on cash	1,096	(145)	(85)
Net increase (decrease) in cash and cash equivalents	1,971	12,201	2,148
Cash and cash equivalents, beginning of year	22,189	9,988	7,840
Cash and cash equivalents, end of year	24,160	22,189	9,988
Non-cash Investing and Financing transactions:
Newton future consideration		1,033
Cash paid (received) for:
Income taxes, net of refunds	16,774	(461)	6,110
Interest	1,049	2,063	3,136
Proceeds From Revolver [Member]
Cash flows from financing activities:
Proceeds from long-term lines of credit	11,000	16,500	65,445
Debt Payments On Revolver [Member]
Cash flows from financing activities:
Repayments of long-term lines of credit	(48,446)	(44,500)
Proceeds From Deutsche Bank Senior Secured Credit Facility [Member]
Cash flows from financing activities:
Proceeds from long-term lines of credit			12,126
Debt Payments On Deutsche Bank Senior Secured Credit Facility [Member]
Cash flows from financing activities:
Repayments of long-term lines of credit			$ (40,125)