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CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:    
Net loss $ (305,299) $ (276,952)
Adjustments to reconcile net loss to net cash provided by operating activities:    
Depreciation and amortization 824,589 847,654
Provision for doubtful accounts 0 3,233
Noncash stock-based compensation expense 47,262 11,997
Amortization of debt discount 0 6,667
Changes in assets and liabilities:    
(Increase) decrease in accounts receivable 1,175,746 (473,841)
(Increase) decrease in inventory (105,973) (30,045)
(Increase) decrease in other current assets (7,599) 12,598
(Increase) decrease in other assets 0 1,045
(Decrease) increase in accounts payable and accrued expenses (935) 439,745
(Decrease) increase in deferred revenue (338,249) (567,599)
(Decrease) increase in deferred rent (5,608) 70,148
Net cash provided by operating activities 1,283,934 44,650
CASH FLOWS FROM INVESTING ACTIVITIES:    
Purchases of property and equipment (71,024) (45,630)
Net cash used in investing activities (71,024) (45,630)
CASH FLOWS FROM FINANCING ACTIVITIES:    
Repayment of notes payable 0 (200,000)
Net proceeds from issuance of common stock from exercise of stock options 130,448 226,755
Net cash provided by financing activities 130,448 26,755
Increase in cash and cash equivalents 1,343,358 25,775
CASH AND CASH EQUIVALENTS, beginning of period 1,394,148 1,488,904
CASH AND CASH EQUIVALENTS, end of period 2,737,506 1,514,679
SUPPLEMENTAL CASH FLOW INFORMATION    
Income taxes 6,000 0
Interest $ 0 $ 2,000