Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax

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- Definition

Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax

+ References

No definition available.

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- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

-Paragraph 1

-Subparagraph (b)

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-Publisher FASB

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-Topic 320

-SubTopic 10

-Section 50

-Paragraph 5

-Subparagraph (aa)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 45

-Paragraph 1

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- Definition

This item represents the cost of debt and equity securities, which are categorized neither as held-to-maturity nor trading, net of adjustments including accretion, amortization, collection of cash, previous other-than-temporary impairments recognized in earnings (less any cumulative-effect adjustments recognized, as defined), and fair value hedge accounting adjustments, if any.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.2)

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash

-URI http://asc.fasb.org/extlink&oid=6506951

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Cash Equivalents

-URI http://asc.fasb.org/extlink&oid=6507016

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 1

-Article 5

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-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.1)

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-Topic 210

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-Section 45

-Paragraph 1

-Subparagraph (a)

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-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3044-108585

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- Definition

Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

+ References

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Cash, Cash Equivalents and Investments (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Schedule of Available-for-sale Securities [Line Items]
Cash and Cash Equivalents, Amortized Cost	$ 67,979	$ 18,675	$ 9,111	$ 15,363
Investments, Amortized Cost	20,970
Investments, Unrealized Gains	0
Investments, Unrealized Losses	(14)
Investments, Fair Value	20,956us-gaap_AvailableForSaleSecurities
Cash [Member]
Schedule of Available-for-sale Securities [Line Items]
Cash and Cash Equivalents, Amortized Cost	48,700	18,700
Cash Equivalents [Member]
Schedule of Available-for-sale Securities [Line Items]
Cash and Cash Equivalents, Amortized Cost	19,321
Cash and Cash Equivalents, Fair Value	19,321
Money market funds [Member]
Schedule of Available-for-sale Securities [Line Items]
Cash and Cash Equivalents, Amortized Cost	17,865
Cash and Cash Equivalents, Fair Value	17,865
Certificates of Deposit [Member]
Schedule of Available-for-sale Securities [Line Items]
Cash and Cash Equivalents, Amortized Cost	1,456
Cash and Cash Equivalents, Fair Value	1,456
US government agency bonds [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Amortized Cost	7,508
Investments, Unrealized Gains	0
Investments, Unrealized Losses	(6)
Investments, Fair Value	7,502
Corporate bonds and commercial paper [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Amortized Cost	6,200
Investments, Unrealized Gains	0
Investments, Unrealized Losses	(8)
Investments, Fair Value	6,192
Certificates of Deposit [Member]
Schedule of Available-for-sale Securities [Line Items]
Investments, Amortized Cost	7,262
Investments, Unrealized Gains	0
Investments, Unrealized Losses	0
Investments, Fair Value	$ 7,262