CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $)	3 Months Ended
Jan. 31, 2015	Jan. 31, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ (426,610)us-gaap_NetIncomeLoss	$ (846,948)us-gaap_NetIncomeLoss
Adjustments to reconcile net loss to net cash provided (used) by operating activities:
Depreciation	689,222us-gaap_Depreciation	703,151us-gaap_Depreciation
Provision for bad debts on accounts receivable	76,797us-gaap_ProvisionForDoubtfulAccounts	96,631us-gaap_ProvisionForDoubtfulAccounts
Amortization	184,723us-gaap_AdjustmentForAmortization	335,616us-gaap_AdjustmentForAmortization
Gain on disposal of property and equipment	(49,821)	(4,750)
Non cash share-based compensation	971CRVP_NonCashSharebasedCompensation	0CRVP_NonCashSharebasedCompensation
Changes in assets and liabilities:
Accounts receivable	(160,858)	617,354
Inventories	(272,062)us-gaap_IncreaseDecreaseInInventories	216,173us-gaap_IncreaseDecreaseInInventories
Other current assets	(194,235)	(257,531)
Accounts payable	(447,904)	794,116
Accrued expenses	(405,436)	(126,947)
Customer deposits	(4,713)	(88,280)
NET CASH PROVIDED BY OPERATING ACTIVITIES	(1,009,926)	1,438,585
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of property and equipment	(652,010)	(441,311)
Proceeds from sale of property and equipment	59,474	4,750
NET CASH USED IN INVESTING ACTIVITIES	(592,536)	(436,561)
CASH FLOWS FROM FINANCING ACTIVITIES:
Net line of credit borrowings	441,853	0
Principal payments on long term debt	(448,092)us-gaap_RepaymentsOfLongTermDebt	(392,856)us-gaap_RepaymentsOfLongTermDebt
Purchase of treasury stock	0	(3,627)
NET CASH USED IN FINANCING ACTIVITIES	(6,239)	(396,483)
NET DECREASE IN CASH AND CASH EQUIVALENTS	(1,608,701)	605,541
CASH AND CASH EQUIVALENTS - beginning of period	1,841,044	2,089,787
CASH AND CASH EQUIVALENTS - end of period	232,343	2,695,328
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Cash paid for interest	383,568us-gaap_InterestPaid	377,449us-gaap_InterestPaid
Cash paid for income taxes	$ 2,575us-gaap_IncomeTaxesPaid	$ 264,513us-gaap_IncomeTaxesPaid

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