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Note 14 - Profit Sharing Plan (Details)
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12 Months Ended |
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Dec. 31, 2014
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| Compensation and Retirement Disclosure [Abstract] | |
| Minimum Age For Full Time Employees To Participate In Plan | 18pesi_MinimumAgeForFullTimeEmployeesToParticipateInPlan |
| Number Of Quarterly Open Periods For Enrollment | 4pesi_NumberOfQuarterlyOpenPeriodsForEnrollment |
| Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent | 100.00%us-gaap_DefinedContributionPlanMaximumAnnualContributionsPerEmployeePercent |
| Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay | 25.00%us-gaap_DefinedContributionPlanEmployerMatchingContributionPercent |
| Defined Contribution Plan Employers Contribution Vesting Period | 5 years |
| X | ||||||||||
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- Definition
Refers to vesting period of employers contribution. No definition available.
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| X | ||||||||||
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- Definition
Refers to minimum age for full time employees to participate in the plan. No definition available.
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| X | ||||||||||
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- Definition
Represents the number of quarterly open periods for enrollment in the Company's 401(k) Plan. No definition available.
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| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
Percentage of employees' gross pay for which the employer contributes a matching contribution to a defined contribution plan. No definition available.
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| X | ||||||||||
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- Definition
Maximum percentage of employee gross pay the employee may contribute to a defined contribution plan. No definition available.
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