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Summary of Significant Accounting Policies (Details) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2014 Segment | Dec. 31, 2013
Basis of consolidation [Abstract] |  |
Net loss associated with working capital adjustment on discontinued operations | $ 0 us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax | $ (211,000)us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
Maximum maturity period to classify as cash equivalent | 3 months |
Other income [Abstract] |  |
Foreign currency gains / (loss) | (154,000)us-gaap_ForeignCurrencyTransactionGainLossBeforeTax | 146,000 us-gaap_ForeignCurrencyTransactionGainLossBeforeTax
Rental income-net | 359,000 us-gaap_RentalIncomeNonoperating | 448,000 us-gaap_RentalIncomeNonoperating
Other | 99,000 par_OthersIncome | (88,000)par_OthersIncome
Total | 304,000 us-gaap_OtherNonoperatingIncome | 506,000 us-gaap_OtherNonoperatingIncome
Finite-Lived Intangible Assets [Line Items] |  |
Amortization of capitalized software costs | 2,900,000 us-gaap_CapitalizedComputerSoftwareAmortization | 4,700,000 us-gaap_CapitalizedComputerSoftwareAmortization
Accelerated amortization | 1,900,000 par_AcceleratedAmortization | 1,300,000 par_AcceleratedAmortization
Amortization identifiable intangible assets | 279,000 us-gaap_AmortizationOfIntangibleAssets | 0 us-gaap_AmortizationOfIntangibleAssets
Components of identifiable intangible assets, including capitalized internal software development costs [Abstract] |  |
Acquired and internally developed software costs | 26,134,000 us-gaap_CapitalizedComputerSoftwareGross | 16,640,000 us-gaap_CapitalizedComputerSoftwareGross
Customer relationships | 160,000 us-gaap_FiniteLivedCustomerRelationshipsGross | 0 us-gaap_FiniteLivedCustomerRelationshipsGross
Non-competition agreements | 30,000 us-gaap_FiniteLivedNoncompeteAgreementsGross | 0 us-gaap_FiniteLivedNoncompeteAgreementsGross
Trademarks (non-amortizable) | 2,200,000 us-gaap_IndefiniteLivedTrademarks | 1,800,000 us-gaap_IndefiniteLivedTrademarks
Gross | 28,524,000 par_IntangibleAssetsExcludingGoodwillBeforeAmortization | 18,440,000 par_IntangibleAssetsExcludingGoodwillBeforeAmortization
Less accumulated amortization | (5,572,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization | (3,369,000)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Net | 22,952,000 us-gaap_IntangibleAssetsNetExcludingGoodwill | 15,071,000 us-gaap_IntangibleAssetsNetExcludingGoodwill
Future amortization of intangible assets [Abstract] |  |
2015 | 3,068,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths |
2016 | 3,465,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo |
2017 | 3,364,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree |
2018 | 3,262,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour |
2019 | 2,985,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive |
Thereafter | 4,608,000 us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive |
Total | 20,752,000 us-gaap_FiniteLivedIntangibleAssetsNet |
Basic and diluted earnings per share computations [Abstract] |  |
Income (loss) from continuing operations | (3,651,000)us-gaap_IncomeLossFromContinuingOperations | 569,000 us-gaap_IncomeLossFromContinuingOperations
Basic [Abstract] |  |
Shares outstanding at beginning of year (in shares) | 15,473 par_SharesOutstandingAtBeginningOfYear | 15,210 par_SharesOutstandingAtBeginningOfYear
Weighted shares issued during the year (in shares) | 28 us-gaap_WeightedAverageNumberOfSharesIssuedBasic | 30 us-gaap_WeightedAverageNumberOfSharesIssuedBasic
Weighted average common shares, basic (in shares) | 15,501 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 15,240 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Loss from continuing operations per common share, basic (in dollars per share) | $ (0.24)us-gaap_IncomeLossFromContinuingOperationsPerBasicShare | $ 0.04 us-gaap_IncomeLossFromContinuingOperationsPerBasicShare
Diluted [Abstract] |  |
Weighted average common shares, basic (in shares) | 15,501 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic | 15,240 us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Weighted average shares issued during the year (in shares) | 0 par_IncrementalCommonSharesAttributableToSharesIssuedDuringYear | 1 par_IncrementalCommonSharesAttributableToSharesIssuedDuringYear
Dilutive impact of stock options and restricted stock awards (in shares) | 0 us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements | 32 us-gaap_IncrementalCommonSharesAttributableToShareBasedPaymentArrangements
Weighted average common shares, diluted (in shares) | 15,501 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding | 15,273 us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding
Loss from continuing operations per common share, diluted (in dollars per share) | $ (0.24)us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare | $ 0.04 us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare
Goodwill [Abstract] |  |
Number of operating segments | 2 us-gaap_NumberOfOperatingSegments |
Number of reportable units | 3 us-gaap_NumberOfReportingUnits |
Goodwill [Roll Forward] |  |
Net balances at beginning of period | 6,852,000 us-gaap_Goodwill | 6,852,000 us-gaap_Goodwill
Goodwill | 27,115,000 us-gaap_GoodwillAcquiredDuringPeriod | 27,115,000 us-gaap_GoodwillAcquiredDuringPeriod
Accumulated Impairment charge | (20,263,000)us-gaap_GoodwillImpairmentLoss | (20,263,000)us-gaap_GoodwillImpairmentLoss
Acquisition | 10,315,000 us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments |
Net balance at end of period | 17,167,000 us-gaap_Goodwill | 6,852,000 us-gaap_Goodwill
Restaurants [Member] |  |
Goodwill [Roll Forward] |  |
Net balances at beginning of period | 0 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = par_RestaurantsMember | 0 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = par_RestaurantsMember
Goodwill | 12,433,000 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_StatementBusinessSegmentsAxis = par_RestaurantsMember | 12,433,000 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_StatementBusinessSegmentsAxis = par_RestaurantsMember
Accumulated Impairment charge | (12,433,000)us-gaap_GoodwillImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = par_RestaurantsMember | (12,433,000)us-gaap_GoodwillImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = par_RestaurantsMember
Acquisition | 10,315,000 us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments / us-gaap_StatementBusinessSegmentsAxis = par_RestaurantsMember |
Net balance at end of period | 10,315,000 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = par_RestaurantsMember | 0 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = par_RestaurantsMember
Hotel/Resort/Spa [Member] |  |
Goodwill [Roll Forward] |  |
Net balances at beginning of period | 6,116,000 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = par_HotelresortandspaMember | 6,116,000 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = par_HotelresortandspaMember
Goodwill | 13,946,000 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_StatementBusinessSegmentsAxis = par_HotelresortandspaMember | 13,946,000 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_StatementBusinessSegmentsAxis = par_HotelresortandspaMember
Accumulated Impairment charge | (7,830,000)us-gaap_GoodwillImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = par_HotelresortandspaMember | (7,830,000)us-gaap_GoodwillImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = par_HotelresortandspaMember
Acquisition | 0 us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments / us-gaap_StatementBusinessSegmentsAxis = par_HotelresortandspaMember |
Net balance at end of period | 6,116,000 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = par_HotelresortandspaMember | 6,116,000 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = par_HotelresortandspaMember
Government Segment [Member] |  |
Goodwill [Roll Forward] |  |
Net balances at beginning of period | 736,000 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = par_GovernmentSegmentMember | 736,000 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = par_GovernmentSegmentMember
Goodwill | 736,000 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_StatementBusinessSegmentsAxis = par_GovernmentSegmentMember | 736,000 us-gaap_GoodwillAcquiredDuringPeriod / us-gaap_StatementBusinessSegmentsAxis = par_GovernmentSegmentMember
Accumulated Impairment charge | 0 us-gaap_GoodwillImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = par_GovernmentSegmentMember | 0 us-gaap_GoodwillImpairmentLoss / us-gaap_StatementBusinessSegmentsAxis = par_GovernmentSegmentMember
Acquisition | 0 us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments / us-gaap_StatementBusinessSegmentsAxis = par_GovernmentSegmentMember |
Net balance at end of period | $ 736,000 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = par_GovernmentSegmentMember | $ 736,000 us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = par_GovernmentSegmentMember
Stock Options [Member] |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] |  |
Incremental shares excluded from computation of diluted earnings per share (in shares) | 215,000 us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember | 127,000 us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount / us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareByAntidilutiveSecuritiesAxis = us-gaap_EmployeeStockOptionMember
Minimum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful lives | 3 years |
Maximum [Member] |  |
Property, Plant and Equipment [Line Items] |  |
Estimated useful lives | 25 years |

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