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Element prim_RevenuePercentage had a mix of decimals attribute values: 3 4. Element prim_VariableInterestEntityDistribution had a mix of decimals attribute values: -5 -3. Element us-gaap_BillingsInExcessOfCostCurrent had a mix of decimals attribute values: -6 -3. Element us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity had a mix of decimals attribute values: -6 -3. Element us-gaap_OperatingIncomeLoss had a mix of decimals attribute values: -5 -3. 'Monetary' elements on report '00300 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY' had a mix of different decimal attribute values. Columns in Cash Flows statement 'CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 365 days and at least 45 values. Shorter duration columns must have at least one fourth (11) as many values. Column '1/1/2012 - 3/31/2012' is shorter (90 days) and has only 2 values, so it is being removed. Columns in Cash Flows statement 'CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 365 days and at least 45 values. Shorter duration columns must have at least one fourth (11) as many values. Column '4/1/2012 - 6/30/2012' is shorter (90 days) and has only 1 values, so it is being removed. Columns in Cash Flows statement 'CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 365 days and at least 45 values. Shorter duration columns must have at least one fourth (11) as many values. Column '7/1/2012 - 9/30/2012' is shorter (91 days) and has only 1 values, so it is being removed. Columns in Cash Flows statement 'CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 365 days and at least 45 values. Shorter duration columns must have at least one fourth (11) as many values. Column '10/1/2012 - 12/31/2012' is shorter (91 days) and has only 2 values, so it is being removed. Columns in Cash Flows statement 'CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 365 days and at least 45 values. Shorter duration columns must have at least one fourth (11) as many values. Column '1/1/2013 - 3/31/2013' is shorter (89 days) and has only 2 values, so it is being removed. Columns in Cash Flows statement 'CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 365 days and at least 45 values. Shorter duration columns must have at least one fourth (11) as many values. Column '4/1/2013 - 6/30/2013' is shorter (90 days) and has only 1 values, so it is being removed. Columns in Cash Flows statement 'CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 365 days and at least 45 values. Shorter duration columns must have at least one fourth (11) as many values. Column '7/1/2013 - 9/30/2013' is shorter (91 days) and has only 1 values, so it is being removed. Columns in Cash Flows statement 'CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 365 days and at least 45 values. Shorter duration columns must have at least one fourth (11) as many values. Column '10/1/2013 - 12/31/2013' is shorter (91 days) and has only 3 values, so it is being removed. Columns in Cash Flows statement 'CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 365 days and at least 45 values. Shorter duration columns must have at least one fourth (11) as many values. Column '1/1/2014 - 3/31/2014' is shorter (89 days) and has only 2 values, so it is being removed. Columns in Cash Flows statement 'CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 365 days and at least 45 values. Shorter duration columns must have at least one fourth (11) as many values. Column '4/1/2014 - 6/30/2014' is shorter (90 days) and has only 1 values, so it is being removed. Columns in Cash Flows statement 'CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 365 days and at least 45 values. Shorter duration columns must have at least one fourth (11) as many values. Column '7/1/2014 - 9/30/2014' is shorter (91 days) and has only 1 values, so it is being removed. Columns in Cash Flows statement 'CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)' have maximum duration 365 days and at least 45 values. Shorter duration columns must have at least one fourth (11) as many values. Column '10/1/2014 - 12/31/2014' is shorter (91 days) and has only 3 values, so it is being removed. 'Monetary' elements on report '40203 - Disclosure - Summary of Significant Accounting Policies (Details 3)' had a mix of different decimal attribute values. 'Monetary' elements on report '40206 - Disclosure - Summary of Significant Accounting Policies (Details 6)' had a mix of different decimal attribute values. 'Monetary' elements on report '41202 - Disclosure - Credit Arrangements (Details 2)' had a mix of different decimal attribute values. 'Monetary' elements on report '41402 - Disclosure - Commitments and Contingencies (Details 2)' had a mix of different decimal attribute values. 'Monetary' elements on report '41902 - Disclosure - Deferred Compensation Agreements and Stock-Based Compensation (Details 2)' had a mix of different decimal attribute values. 'Monetary' elements on report '42301 - Disclosure - Stockholders' Equity (Details)' had a mix of different decimal attribute values. 'Monetary' elements on report '42501 - Disclosure - Subsequent Events (Details)' had a mix of different decimal attribute values. Process Flow-Through: 00100 - Statement - CONSOLIDATED BALANCE SHEETS Process Flow-Through: Removing column 'Dec. 31, 2012' Process Flow-Through: Removing column 'Dec. 31, 2011' Process Flow-Through: 00105 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) Process Flow-Through: 00200 - Statement - CONSOLIDATED STATEMENTS OF INCOME Process Flow-Through: Removing column '3 Months Ended Dec. 31, 2014' Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2014' Process Flow-Through: Removing column '3 Months Ended Jun. 30, 2014' Process Flow-Through: Removing column '3 Months Ended Mar. 31, 2014' Process Flow-Through: Removing column '3 Months Ended Dec. 31, 2013' Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2013' Process Flow-Through: Removing column '3 Months Ended Jun. 30, 2013' Process Flow-Through: Removing column '3 Months Ended Mar. 31, 2013' Process Flow-Through: Removing column '3 Months Ended Dec. 31, 2012' Process Flow-Through: Removing column '3 Months Ended Sep. 30, 2012' Process Flow-Through: Removing column '3 Months Ended Jun. 30, 2012' Process Flow-Through: Removing column '3 Months Ended Mar. 31, 2012' Process Flow-Through: 00400 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS prim-20141231.xml prim-20141231.xsd prim-20141231_cal.xml prim-20141231_def.xml prim-20141231_lab.xml prim-20141231_pre.xml true true