INCOME TAXES (Details 2) (USD $)	Oct. 31, 2011	Oct. 31, 2010
Deferred tax assets:
Inventories	$ 15,581,000	$ 14,196,000
Deferred compensation liability	11,708,000	9,969,000
Foreign R and D carryforward and credit	3,277,000	2,788,000
Bonus accrual	2,373,000	1,568,000
Stock option compensation	1,947,000	1,068,000
Capital lease obligation	1,354,000	0
Allowance for doubtful accounts receivable	973,000	896,000
Vacation accrual	877,000	769,000
Warranty reserve	793,000	541,000
Net operating loss carryforward of acquired business	661,000	1,395,000
Customer rebates accrual	616,000	558,000
Other	2,325,000	1,323,000
Total deferred tax assets	42,485,000	35,071,000
Deferred tax liabilities:
Intangible asset amortization	68,601,000	55,750,000
Accelerated depreciation	4,942,000	3,044,000
Software development costs	2,127,000	1,905,000
Other	1,054,000	773,000
Total deferred tax liabilities	76,724,000	61,472,000
Net deferred tax liability	$ (34,239,000)	$ (26,401,000)