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Consolidated Statements Of Cash Flows (USD $)
9 Months Ended
Aug. 31, 2011
Aug. 31, 2010
Cash Flows from Operating Activities:  
Net (loss) income$ (1,971,568)[1]$ 3,121,866[1]
Adjustments to reconcile net (loss) income to net cash provided by operating activities:  
Depreciation and amortization expense428,540437,126[1]
Loss on sale of property and equipment1,214 
Compensatory element of stock options407,24498,460[1]
Provision for doubtful accounts196,555270,460[1]
Write-off of abandoned patents207,571 
Equity in losses of affiliate92,21462,111[1]
Deferred income tax benefit (1,788,241)[1]
Changes in assets and liabilities:  
Accounts receivable and advances(407,136)(247,472)[1]
Prepaid expenses and other current assets(238,930)(38,811)[1]
Deposits and other assets(134,604)(54,219)[1]
Accounts payable(178,052)252,470[1]
Accrued expenses1,573,842(413,932)[1]
Deferred consulting obligation(80,255)(74,836)[1]
Deferred revenue563,106[1]78,303[1]
Net cash provided by operating activities459,7411,703,285[1]
Cash flows from investing activities:  
Restricted cash held in escrow(2,500,000) 
Purchases of property and equipment(560,444)(313,666)[1]
Purchases of marketable securities and other investments (1,035,000)[1]
Proceeds from sale of marketable securities and other investments130,000863,000[1]
Investments in patents and trademarks(48,106)(187,735)[1]
Net cash used in investing activities(2,978,550)(673,401)[1]
Cash flows from financing activities:  
Proceeds from the exercise of stock options22,762 
Net cash provided by financing activities22,762 
(Decrease) increase in cash and cash equivalents(2,496,047)1,029,884[1]
Cash and cash equivalents - beginning of period8,369,537[1]6,850,765[1]
Cash and cash equivalents - end of period$ 5,873,490$ 7,880,649[1]
[1]See Note 7, Retrospective Adoption of New Accounting Principle