CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011
Cash flows from operating activities:
Net loss	$ (6,606)		$ (1,883)
Adjustments to reconcile net loss to net cash used in operating activities:
Deferred income taxes	3		(22)
Depreciation and amortization	1,474		1,109
Accretion of interest to related party discount	188		189
Interest on financial liabilities	99		77
Re-measurement of contingent consideration	429		26
Stock-based compensation expense	504		194
Changes in operating assets and liabilities:
Accounts receivable	630		2,973
Inventories	(942)		(761)
Other assets	264		176
Income taxes receivable	(211)		(87)
Accounts payable	818		(1,270)
Liability to related party	(263)		(255)
Accrued expenses	(52)		(729)
Deferred revenue	1,181		58
Income taxes payable	103		3
Net cash used in operating activities	(2,381)		(202)
Cash flows from investing activities:
Capital expenditures	(1,480)		(365)
Net cash acquired from acquisitions	572
Net cash paid for acquisition of noncontrolling interest	(500)
Net cash used in investing activities	(1,408)		(365)
Cash flows from financing activities:
Payment for financial liabilities	(385)		(435)
Proceeds from issuance of common stock under employee stock purchase plan	178
Proceeds from issuance of common stock upon option exercised			12
Net cash used in financing activities	(207)		(423)
Effect of exchange rates on cash and cash equivalents	96		119
Net decrease in cash and cash equivalents	(3,900)		(871)
Cash and cash equivalents at beginning of period	17,239	[1]	10,799
Cash and cash equivalents at end of period	13,339		9,928
Supplemental disclosures of non-cash investing and financing activities:
Common stock issued in connection with business combinations	3,041
Common stock issued in connection with stock bonus and incentive plans	259		1,114
Stock option grants issued in connection with stock bonus and incentive plans	117		610
Property and equipment subject to accounts payable	$ 42

[1] The condensed consolidated balance sheet has been derived from the audited consolidated financial statements at December 31, 2011 but does not include all the information and footnotes required by U.S. generally accepted accounting principles for complete financial statements.