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Statements of Cash Flows (USD $)
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Operating activities:      
Net loss $ (3,974,200) $ (3,306,800) $ (3,484,300)
Adjustments to reconcile net loss to net cash provided by (used in) by operating activities:      
Depreciation and amortization 40,600 26,900 18,300
Unrealized gain on investments (80,000) 0 0
Bad debts 23,300 22,500 0
Inventory reserve 125,000 0 112,500
Change in fair value of derivative 63,300 0 0
Payments received in common stock (125,000) 0 0
Payment of stock option exercise received as compensation 235,800 384,500 0
Share-based Compensation 699,900 452,000 453,000
Fair value of stock options awarded to professionals and consultants in payment of fees for services provided 1,693,900 2,383,000 2,555,800
Fair value of stock options awarded to employees in payment of compensation 526,600 288,900 282,000
Services received in consideration of payment of stock subscription receivable 0 70,000 50,000
Changes in assets and liabilities:      
Accounts receivable 86,300 (144,200) (199,500)
Inventories 50,800 (9,800) (138,300)
Prepaid expense and other current assets (209,700) 425,900 58,000
Prepaid royalties 437,600 (519,900) (148,900)
Accounts payable 198,900 132,800 (239,700)
Accrued expenses 356,700 (122,400) 97,200
Deferred revenue 138,800 (26,100) 71,100
Net cash provided by (used in) operating activities 288,600 57,300 (512,800)
Investing activities:      
Property and equipment additions (28,500) (38,900) (26,900)
Financing activities:      
Payments on capital leases (12,400) (1,500) 0
Proceeds from assignment of call option 0 0 158,200
Proceeds from sale of warrants 0 0 80,000
Proceeds from issuance of common stock 0 0 925,000
Proceeds from the exercise of stock options 1,000 0 0
Net cash provided by financing activities (11,400) (1,500) 1,163,200
Net increase (decrease) in cash and cash equivalents 248,700 16,900 623,500
Cash and cash equivalents, beginning 747,300 730,400 106,900
Cash and cash equivalents, ending 996,000 747,300 730,400
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION      
Income taxes 0   0
Interest 2,000 600 0
SUPPLEMENTAL DISCLOSURES OF NON-CASH INFORMATION      
Acquisition of property and equipment under capital lease 30,400 18,300 0
Amounts due in connection with issuance of common stock 0 0 421,200
Common stock issued in payment of future facility costs $ 1,277,400 $ 0 $ 0