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Statements of Cash Flows (Unaudited) (USD $)
6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Cash flows from operating activities    
Net loss $ (289,682) $ (795,770)
Adjustments to reconcile net loss to net cash provided by operating activities    
Depreciation 118,262 59,377
Loss on disposal of property and equipment 0 63
Stock-based compensation expense 87,553 97,613
Amortization of deferred financing costs 28,059 41,746
Lease incentives received from landlord, net of amortization of deferred rent related to lease incentives 123,821 785,112
Change in operating assets and liabilities    
(Increase) Decrease in Accounts receivable, trade (380,821) 187,953
Inventories 63,259 (410,854)
Prepaid expenses and other current assets 9,439 13,787
Increase (Decrease) in    
Accounts payable 179,225 128,513
Accrued compensation and other current liabilities (101,371) 67,430
Accrued interest, related parties 371,110 362,320
Deferred rent (19,695) 0
Deferred revenue (109,167) 148,717
Net cash provided by operating activities 79,992 686,007
Cash flows from investing activities    
Cash received from sale of property and equipment 0 700
Purchase of property and equipment (225,723) (1,023,217)
Net cash used in investing activities (225,723) (1,022,517)
Proceeds from exercise of common stock options 25,458 0
Proceeds from notes payable 0 475,000
Net cash provided by financing activity 25,458 475,000
Net increase (decrease) in cash and cash equivalents (120,273) 138,490
Cash and cash equivalents - beginning of period 196,478 16,864
Cash and cash equivalents - end of period 76,205 155,354
Non-cash financing activities    
Deferred financing costs from issuance of warrants (See Note 7) $ 0 $ 137,955