XML 26 R79.htm IDEA: XBRL DOCUMENT v2.4.1.9
Retirement Plans (Changes in Benefit Obligations, Components of Benefit Costs, Weighted-Average Assumptions, and Plan Assets) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Assumptions (end of period):      
Discount rate used in determining benefit obligation 3.86%us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate 4.49%us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate 3.89%us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate
Reconciliation of funded status (end of period):      
Accumulated benefit obligation $ (13,909)us-gaap_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation $ (12,284)us-gaap_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation $ (13,439)us-gaap_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateAccumulatedBenefitObligation
Projected benefit obligation (13,909)us-gaap_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation (12,284)us-gaap_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation (13,439)us-gaap_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateProjectedBenefitObligation
Fair value of plan assets 11,290us-gaap_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets 10,851us-gaap_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets 9,754us-gaap_DefinedBenefitPlanPensionPlansWithAccumulatedBenefitObligationsInExcessOfPlanAssetsAggregateFairValueOfPlanAssets
Defined benefit plan, funded status of plan, total (2,619)us-gaap_DefinedBenefitPlanFundedStatusOfPlan (1,433)us-gaap_DefinedBenefitPlanFundedStatusOfPlan (3,685)us-gaap_DefinedBenefitPlanFundedStatusOfPlan
Net actuarial loss (4,000)us-gaap_DefinedBenefitPlanActuarialGainLoss (2,277)us-gaap_DefinedBenefitPlanActuarialGainLoss (4,545)us-gaap_DefinedBenefitPlanActuarialGainLoss
Accumulated other comprehensive loss (4,000)us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeLossAfterTax (2,277)us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeLossAfterTax (4,545)us-gaap_DefinedBenefitPlanAccumulatedOtherComprehensiveIncomeLossAfterTax
Prepaid pension cost 1,381hall_DefinedBenefitPlanPrepaidBenefitCost 844hall_DefinedBenefitPlanPrepaidBenefitCost 860hall_DefinedBenefitPlanPrepaidBenefitCost
Net amount recognized as of December 31 (2,619)us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheet (1,433)us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheet (3,685)us-gaap_DefinedBenefitPlanAmountsRecognizedInBalanceSheet
Changes in projected benefit obligation:      
Benefit obligation as of beginning of period 12,284us-gaap_DefinedBenefitPlanBenefitObligation 13,439us-gaap_DefinedBenefitPlanBenefitObligation 12,990us-gaap_DefinedBenefitPlanBenefitObligation
Interest cost 532us-gaap_DefinedBenefitPlanInterestCost 505us-gaap_DefinedBenefitPlanInterestCost 564us-gaap_DefinedBenefitPlanInterestCost
Actuarial liability loss 1,947hall_DefinedBenefitPlanActuarialLiabilityGainLoss (824)hall_DefinedBenefitPlanActuarialLiabilityGainLoss 700hall_DefinedBenefitPlanActuarialLiabilityGainLoss
Benefits paid (854)us-gaap_DefinedBenefitPlanBenefitsPaid (836)us-gaap_DefinedBenefitPlanBenefitsPaid (815)us-gaap_DefinedBenefitPlanBenefitsPaid
Benefit obligation as of end of period 13,909us-gaap_DefinedBenefitPlanBenefitObligation 12,284us-gaap_DefinedBenefitPlanBenefitObligation 13,439us-gaap_DefinedBenefitPlanBenefitObligation
Change in plan assets:      
Fair value of plan assets as of beginning of period 10,851us-gaap_DefinedBenefitPlanFairValueOfPlanAssets 9,754us-gaap_DefinedBenefitPlanFairValueOfPlanAssets 9,019us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
Actual return on plan assets (net of expenses) 760us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets 1,565us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets 839us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets
Employer contributions 533us-gaap_DefinedBenefitPlanContributionsByEmployer 368us-gaap_DefinedBenefitPlanContributionsByEmployer 711us-gaap_DefinedBenefitPlanContributionsByEmployer
Benefits paid 854us-gaap_DefinedBenefitPlanBenefitsPaid 836us-gaap_DefinedBenefitPlanBenefitsPaid 815us-gaap_DefinedBenefitPlanBenefitsPaid
Fair value of plan assets as of end of period 11,290us-gaap_DefinedBenefitPlanFairValueOfPlanAssets 10,851us-gaap_DefinedBenefitPlanFairValueOfPlanAssets 9,754us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
Net periodic pension cost:      
Service cost - benefits earned during the period         
Interest cost on projected benefit obligation 532us-gaap_DefinedBenefitPlanInterestCost 505us-gaap_DefinedBenefitPlanInterestCost 564us-gaap_DefinedBenefitPlanInterestCost
Expected return on plan assets (698)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets (615)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets (584)us-gaap_DefinedBenefitPlanExpectedReturnOnPlanAssets
Recognized actuarial loss 162us-gaap_AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTax 495us-gaap_AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTax 482us-gaap_AmountRecognizedInNetPeriodicBenefitCostAndOtherComprehensiveIncomeLossBeforeTax
Net periodic pension cost $ (4)us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost $ 385us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost $ 462us-gaap_DefinedBenefitPlanNetPeriodicBenefitCost
Discount rate 4.49%us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate 3.89%us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate 4.50%us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostDiscountRate
Expected return on plan assets 6.50%us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets 6.50%us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets 6.50%us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets