Consolidated Statements of Cash Flows (Unaudited) (USD $)	12 Months Ended
Feb. 28, 2015	Feb. 28, 2014
CASH FLOWS FROM OPERATING ACTIVITIES:
Net Income	$ 606,133us-gaap_ProfitLoss	$ 484,474us-gaap_ProfitLoss
Depreciation and amortization	407,795	343,869
Stock based compensation expense	42,523us-gaap_StockOptionPlanExpense	18,127us-gaap_StockOptionPlanExpense
Inventory reserve	99,535	(5,346)
Allowance for doubtful accounts	11,047	12,000
Write off of impaired acquisition costs		15,020us-gaap_AssetImpairmentCharges
(Increase) Decrease in:
Accounts receivable	(180,001)	68,736
Inventories	(483,897)us-gaap_IncreaseDecreaseInInventories	159,702us-gaap_IncreaseDecreaseInInventories
Prepaid expenses and other assets	65,886	(80,768)
(Decrease) Increase in:
Accounts payable and accrued expenses	155,585	235,550
Customer deposits	99,322	294,000
Income taxes payable	100,529	123,067
Net Cash Provided by Operating Activities	924,457	1,668,431
CASH FLOW FROM INVESTING ACTIVITIES:
Purchase of equipment, furnishings and leasehold improvements	(357,050)	(224,354)
Sale (Purchase) of marketable securities	(1,021,691)	345,116
Patent application and other asset costs	(22,352)	(55,577)
Net Cash (Used In) Provided by Investing Activities	(1,401,093)	65,185
CASH FLOW FROM FINANCING ACTIVITIES:
Proceeds from exercise of options		210
Proceeds from note payable - bank		1,600,000us-gaap_ProceedsFromBankDebt
Repayments of long term debt	(192,603)us-gaap_RepaymentsOfLongTermDebt	(2,042,711)us-gaap_RepaymentsOfLongTermDebt
Net Cash (Used In) Financing Activities	(192,603)	(442,501)
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	(669,239)	1,291,115
CASH AND CASH EQUIVALENTS
Beginning of period	3,232,021	1,940,906
End of period	2,562,782	3,232,021
SUPPLEMENTAL DISCLOSURE:
Interest paid	64,527us-gaap_InterestPaid	110,151us-gaap_InterestPaid
Taxes Paid	$ 127,046us-gaap_IncomeTaxesPaidNet	$ 2,485us-gaap_IncomeTaxesPaidNet

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