v2.3.0.15

Condensed Consolidated Statements Of Cash Flow (USD $)	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Cash flows from operating activities:
Net loss	$ (3,376,035)	$ (3,803,167)
Adjustments to reconcile net loss to net cash used in operating activities:
Share-based compensation expense	2,249,391	2,144,105
Depreciation	1,450,990	1,594,296
Write-off of deferred financing costs and discount on long-term debt	153,101
Loss (gain) on disposal of equipment	50,699	(1,563)
Amortization of deferred financing costs	71,939	78,648
Amortization of discount on long-term debt	21,707	146,738
Amortization of intangible assets	41,459	181,403
Change in allowance for doubtful accounts	23,584	(20,509)
Changes in assets and liabilities:
Accounts receivable	505,565	(1,559,264)
Inventories	(880,321)	(1,786,129)
Other current assets	(202,183)	762,289
Accounts payable	305,928	1,135,987
Accrued liabilities	(1,190,856)	(434,940)
Other non-current assets and non-current liabilities	(84,418)	(4,991)
Net cash used in operating activities	(859,450)	(1,567,097)
Cash flows from investing activities:
Purchases of property and equipment	(851,984)	(1,534,687)
Purchases of available-for-sale securities	(12,602,233)	(7,263,213)
Maturities of available-for-sale securities	9,156,241	6,148,491
Net proceeds from the sale of equipment	89,476
Net cash used in investing activities	(4,208,500)	(2,649,409)
Cash flows from financing activities:
Payments on debt and capital leases	(3,661,434)	(1,670,091)
Proceeds from debt borrowings	7,500,000
Payment of debt fees	(80,930)	(85,059)
Proceeds from issuance of common stock under employee stock purchase plan	345,852	225,084
Proceeds from stock option exercises	1,056,492	204,354
Shares repurchased for payment of taxes on stock awards	(735,505)
Net cash provided by (used in) financing activities	4,424,475	(1,325,712)
Effect of exchange rate changes on cash and cash equivalents	(155,721)	162,884
Net decrease in cash and cash equivalents	(799,196)	(5,379,334)
Cash and cash equivalents-beginning of period	4,230,709	8,905,425
Cash and cash equivalents-end of period	3,431,513	3,526,091
Supplemental cash flow information:
Cash paid for interest	289,677	334,295
Cash paid for taxes	25,480	21,639
Non-cash investing and financing activities:
Purchases of property and equipment in current liabilities	69,803	46,873
Assets acquired through capital lease	$ 26,655

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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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