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Note 8 - Customer and Geographic Information (Details) - Receivables Percentage by Major Customers | Jun. 30, 2013 | Dec. 31, 2012
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Customer A [Member] |  |
Note 8 - Customer and Geographic Information (Details) - Receivables Percentage by Major Customers [Line Items] |  |
Accounts Receivable Percentage by Major Customers | 34.00% | 42.00%
Customer B [Member] |  |
Note 8 - Customer and Geographic Information (Details) - Receivables Percentage by Major Customers [Line Items] |  |
Accounts Receivable Percentage by Major Customers | 15.00% | 18.00%
Customer C [Member] |  |
Note 8 - Customer and Geographic Information (Details) - Receivables Percentage by Major Customers [Line Items] |  |
Accounts Receivable Percentage by Major Customers | 21.00% | 11.00%

X
- Definition Percentage of accounts receivable from a single external customer that accounts for 10 percent or more of an entity's total accounts receivable as of the balance sheet date + References No definition available. + Details
Name: | pdfs_AccountsReceivableMajorCustomerPercentage
Namespace Prefix: | pdfs_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | pdfs_Note8CustomerandGeographicInformationDetailsReceivablesPercentagebyMajorCustomersLineItems
Namespace Prefix: | pdfs_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration