Equity impact of the purchase of treasury stock in connection with tax withholdings on restricted stock grants.

No definition available.

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Namespace Prefix:	pdfs_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The element that represents the purchase of treasury stock shares in connection with tax withholdings on restricted stock grants, in shares.

+ References

No definition available.

+ Details

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- Definition

This element represents the amount of recognized equity-based compensation related to stock options during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized).

+ References

No definition available.

+ Details

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- Definition

Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 2

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- Definition

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Other Comprehensive Income

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-Name Accounting Standards Codification

-Glossary Comprehensive Income

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-Name Accounting Standards Codification

-Topic 220

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-Paragraph 5

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-Name Accounting Standards Codification

-Glossary Net Income

-URI http://asc.fasb.org/extlink&oid=6518256

+ Details

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- Definition

Number of shares of stock issued as of the balance sheet date, including shares that had been issued and were previously outstanding but which are now held in the treasury.

+ References

+ Details

Name:	us-gaap_SharesIssued
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Period Type:	instant

- Definition

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

+ References

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-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30, 31

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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

+ References

+ Details

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Period Type:	duration

- Definition

Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.

+ References

+ Details

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- Definition

Number of share options (or share units) exercised during the current period.

+ References

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

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-Number 210

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-Paragraph 29, 30

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+ Details

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- Definition

Number of treasury shares (units) reissued during the period, excluding reissuance of shares (units) held in treasury used to satisfy equity-based compensation obligations exercised by the holders of such rights. Upon reissuance of shares (units) from treasury, either the common or preferred stock (unit) reissued is outstanding.

+ References

+ Details

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- Definition

Aggregate change in value for stock issued during the period as a result of employee stock purchase plan.

+ References

+ Details

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- Definition

Value of stock issued as a result of the exercise of stock options.

+ References

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-Name Regulation S-X (SX)

-Number 210

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-Name Regulation S-X (SX)

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-Paragraph 29, 30, 31

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- Definition

Equity impact of the value of treasury stock (units) reissued during the period, excluding reissuance of shares (units) held in treasury used to satisfy equity-based compensation obligations exercised by the holders of such rights. Upon reissuance of shares (units) from treasury, either the common or preferred stock (unit) reissued is outstanding.

+ References

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- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

+ References

+ Details

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- Definition

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

+ References

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Consolidated Statements of Stockholders’ Equity (USD $) In Thousands, except Share data	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Total
Balances, at Dec. 31, 2011	$ 4	$ 208,826	$ (22,899)	$ (128,789)	$ (299)	$ 56,843us-gaap_StockholdersEquity
Balances, (in Shares) at Dec. 31, 2011	28,304,000		4,331,000
Issuance of common stock in connection with employee stock purchase plan		978				978
Issuance of common stock in connection with employee stock purchase plan (in Shares)	201,000					201,000
Issuance of common stock in connection with exercise of options		5,528				5,528
Issuance of common stock in connection with exercise of options (in Shares)	1,019,000					1,019,000
Vesting of restricted stock units (in Shares)	172,000
Purchases of treasury stock in connection with tax withholdings on restricted stock grants			(511)			(511)
Purchases of treasury stock in connection with tax withholdings on restricted stock grants (in Shares)	(45,000)		45,000
Purchases of treasury stock			(4,368)			(4,368)
Purchases of treasury stock (in Shares)	(425,000)		425,000
Stock-based compensation expense		4,880				4,880
Tax benefit from employee stock plans		149				149
Comprehensive income				37,211	350	37,561us-gaap_ComprehensiveIncomeNetOfTax
Balances, at Dec. 31, 2012	4	220,361	(27,778)	(91,578)	51	101,060us-gaap_StockholdersEquity
Balances, (in Shares) at Dec. 31, 2012	29,226,000		4,801,000
Issuance of common stock in connection with employee stock purchase plan		1,317				1,317
Issuance of common stock in connection with employee stock purchase plan (in Shares)	184,000					184,000
Issuance of common stock in connection with exercise of options	1	5,338				5,339
Issuance of common stock in connection with exercise of options (in Shares)	871,000					871,000
Vesting of restricted stock units (in Shares)	217,000
Purchases of treasury stock in connection with tax withholdings on restricted stock grants			(1,283)			(1,283)
Purchases of treasury stock in connection with tax withholdings on restricted stock grants (in Shares)	(61,000)		61,000
Issuance of treasury stock		(156)	156
Issuance of treasury stock (in Shares)			(14,000)
Stock-based compensation expense		6,591				6,591
Tax benefit from employee stock plans		362				362
Comprehensive income				20,929	397	21,326us-gaap_ComprehensiveIncomeNetOfTax
Balances, at Dec. 31, 2013	5	233,813	(28,905)	(70,649)	448	134,712us-gaap_StockholdersEquity
Balances, (in Shares) at Dec. 31, 2013	30,437,000		4,848,000
Issuance of common stock in connection with employee stock purchase plan		1,437				1,437
Issuance of common stock in connection with employee stock purchase plan (in Shares)	114,000					114,000
Issuance of common stock in connection with exercise of options		3,225				3,225
Issuance of common stock in connection with exercise of options (in Shares)	509,000					509,000
Vesting of restricted stock units (in Shares)	350,000
Purchases of treasury stock in connection with tax withholdings on restricted stock grants			(1,577)			(1,577)
Purchases of treasury stock in connection with tax withholdings on restricted stock grants (in Shares)	(100,000)		100,000
Purchases of treasury stock			(3,566)			(3,566)
Purchases of treasury stock (in Shares)	(194,000)		194,000
Stock-based compensation expense		8,512				8,512
Tax benefit from employee stock plans		1,747				1,747
Comprehensive income				18,462	(1,129)	17,333us-gaap_ComprehensiveIncomeNetOfTax
Balances, at Dec. 31, 2014	$ 5	$ 248,734	$ (34,048)	$ (52,187)	$ (681)	$ 161,823us-gaap_StockholdersEquity
Balances, (in Shares) at Dec. 31, 2014	31,116,000		5,142,000