Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Operating activities:
Net loss	$ (4,911)	$ (7,689)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	9,982	7,837
Stock-based compensation	1,448	1,753
Interest expense related to amortization of debt discount and debt issuance costs	189	444
Provision for doubtful accounts	116	731
Provision for excess and obsolete inventory	1,402	1,043
Gain on sale of IMC Co. (discontinued operations)		(188)
Deferred income tax benefit	(1,668)	(185)
Changes in operating assets and liabilities:
Accounts receivable	(3,164)	(275)
Inventories	2,949	(8,785)
Prepaid expenses and other current assets	241	(1,382)
Other assets	187	56
Accounts payable	(1,285)	(3,289)
Accrued expenses and other	(825)	(483)
Deferred revenues	(105)	(836)
Net cash provided by (used in) operating activities	4,556	(11,248)
Investing activities:
Cash received in acquisition of Scient'x		1,589
Proceeds from sale of IMC Co. (discontinued operations)		329
Cash paid for acquisition of Brazilian subsidiary	(490)
Purchases of property and equipment	(3,882)	(6,073)
Purchase of intangible assets	(445)	(500)
Net cash used in investing activities	(4,817)	(4,655)
Financing activities:
Exercise of stock options	97	194
Net proceeds from issuance of common stock		49,659
Borrowings under lines of credit	430	1,610
Repayments under lines of credit	(430)	(1,796)
Principal payments on capital lease obligations	(71)	(96)
Principal payments on notes payable	(1,178)	(4,792)
Net cash (used in) provided by financing activities	(1,152)	44,779
Effect of exchange rate changes on cash and cash equivalents	6	(553)
Net (decrease) increase in cash and cash equivalents	(1,407)	28,323
Cash and cash equivalents at beginning of period	23,168	10,085
Cash and cash equivalents at end of period	21,761	38,408
Supplemental cash flow information:
Cash paid for interest	1,224	1,577
Cash paid for income taxes	209	114
Purchases of property and equipment in accounts payable	3,022	7,254
Financing of software and support by third party	177	872
Financing of insurance premiums by insurance provider		406
Payable for acquisition of Brazilian subsidiary	113
Non-cash purchases of license agreements	75
Issuance of common stock in connection with Scient'x acquisition		$ 151,639
Stock options issued in connection with Scient'x acquisition		1,040
Non-cash exercise of warrants		540