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Fair Value Measurement (Tables)

6 Months Ended

Jun. 30, 2012

Fair Value Measurement [Abstract]

Financial assets and liabilities measured and recognized at fair value on a recurring basis

		June 30, 2012																December 31, 2011
		Fair Value Measurements																Fair Value Measurements
		Level 1				Level 2				Level 3				Total				Level 1				Level 2				Level 3				Total
Assets:
Cash equivalents		$	13,136				0				0			$	13,136			$	10,133				0				0			$	10,133
Liabilities:
Earn-out-cash		$	0				0				681			$	681			$	0				0				765			$	765

Reconciliation of the beginning and ending balances of the earn-out - cash

		June 30, 2012				December 31, 2011
Balance at the beginning of the period		$	765			$	380
Addition of earn-out—cash related to Ocunetics, Inc. acquisition			0				105
Payment made on earn-out—RetinaLabs			(162	)			0
Change in fair value of contingent consideration			78				280
Balance at the end of the period		$	681			$	765

The earn-out liability is recorded in accrued expenses and other long-term liabilities on the accompanying condensed consolidated balance sheets. At June 30, 2012 and December 31, 2011, accrued expenses included $210 thousand and $197 thousand and other long-term liabilities included $471 thousand and $568 thousand related to the earn-out liability.

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- Definition

Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19279-110258



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 157

-Paragraph 32

-Subparagraph c

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19190-110258

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