$OLP
ONE LIBERTY PROPERTIES INC Stock $olp

$olp Overview Financials Valuation SEC Filings Company Website

2013 Q4 Form 10-K Financial Statement

#000104746914002526 Filed on March 17, 2014

Income Statement

Concept	2013 Q4	2013 Q3	2013 Q2
Revenue	$14.17M	$12.97M	$11.98M
YoY Change	25.17%	16.92%	10.3%
Cost Of Revenue	$880.0K	$840.0K	$940.0K
YoY Change	-12.0%	23.53%	22.08%
Gross Profit	$13.29M	$12.13M	$11.05M
YoY Change	38.44%	13.79%	6.97%
Gross Profit Margin	93.82%	93.52%	92.23%
Selling, General & Admin	$2.040M	$2.020M	$2.020M
YoY Change	5.7%	3.59%	13.48%
% of Gross Profit	15.35%	16.65%	18.28%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$3.630M	$3.020M	$2.720M
YoY Change	53.16%	14.83%	7.94%
% of Gross Profit	27.31%	24.9%	24.62%
Operating Expenses	$5.650M	$6.386M	$5.763M
YoY Change	30.79%	24.07%	13.38%
Operating Profit	$7.640M	$6.584M	$6.218M
YoY Change	44.7%	0.3%	3.31%
Interest Expense	-$4.140M	$3.409M	$3.158M
YoY Change	57.41%	4.54%	-4.53%
% of Operating Profit	-54.19%	51.78%	50.79%
Other Income/Expense, Net	$10.00K	$10.00K	$10.00K
YoY Change	0.0%	0.0%	-95.24%
Pretax Income	$3.410M	$3.080M	$7.610M
YoY Change	62.38%	2.67%	132.72%
Income Tax
% Of Pretax Income
Net Earnings	$3.478M	$3.211M	$7.736M
YoY Change	-29.5%	-82.56%	34.54%
Net Earnings / Revenue	24.55%	24.76%	64.57%
Basic Earnings Per Share	$0.22	$0.20	$0.51
Diluted Earnings Per Share	$0.22	$0.20	$0.50
COMMON SHARES
Basic Shares Outstanding	15.18M shares	15.09M shares	14.84M shares
Diluted Shares Outstanding	15.28M shares	15.19M shares	14.94M shares

Balance Sheet

Concept	2013 Q4	2013 Q3	2013 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments	$16.60M	$18.90M	$40.90M
YoY Change	13.7%	22.73%	165.58%
Cash & Equivalents	$16.63M	$18.90M	$40.93M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables	$13.70M	$13.40M	$13.00M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$30.30M	$32.30M	$53.90M
YoY Change	11.4%	12.54%	89.12%
LONG-TERM ASSETS
Property, Plant & Equipment	$496.2M	$498.4M	$412.9M
YoY Change	22.46%	25.43%	2.65%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments	$5.200M	$5.300M	$5.300M
YoY Change	-73.6%	-69.89%	-69.89%
Other Assets	$14.10M	$8.300M	$8.800M
YoY Change	11.9%	-25.89%	-3.3%
Total Long-Term Assets	$541.6M	$537.3M	$441.9M
YoY Change	19.3%	22.02%	-0.35%
TOTAL ASSETS
Total Short-Term Assets	$30.30M	$32.30M	$53.90M
Total Long-Term Assets	$541.6M	$537.3M	$441.9M
Total Assets	$571.9M	$569.6M	$495.8M
YoY Change	18.86%	21.44%	5.05%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable
YoY Change
Accrued Expenses	$7.800M	$8.600M	$6.100M
YoY Change	18.18%	45.76%	5.17%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$0.00	$0.00
YoY Change		-100.0%	-100.0%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$13.60M	$14.00M	$11.50M
YoY Change	14.29%	-18.6%	-62.05%
LONG-TERM LIABILITIES
Long-Term Debt	$301.3M	$300.3M	$227.9M
YoY Change	33.32%	42.66%	5.17%
Other Long-Term Liabilities	$6.900M	$6.400M	$5.900M
YoY Change	30.19%	33.33%	18.0%
Total Long-Term Liabilities	$308.2M	$306.7M	$233.8M
YoY Change	33.25%	42.45%	5.46%
TOTAL LIABILITIES
Total Short-Term Liabilities	$13.60M	$14.00M	$11.50M
Total Long-Term Liabilities	$308.2M	$306.7M	$233.8M
Total Liabilities	$321.8M	$320.7M	$245.3M
YoY Change	32.37%	37.91%	-2.65%
SHAREHOLDERS EQUITY
Retained Earnings	$23.88M	$26.20M
YoY Change	-14.73%	-7.47%
Common Stock	$225.5M	$222.8M
YoY Change	7.04%	6.46%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$248.9M	$247.8M	$249.4M
YoY Change
Total Liabilities & Shareholders Equity	$571.9M	$569.6M	$495.8M
YoY Change	18.86%	21.44%	5.05%

Cashflow Statement

Concept	2013 Q4	2013 Q3	2013 Q2
OPERATING ACTIVITIES
Net Income	$3.478M	$3.211M	$7.736M
YoY Change	-29.5%	-82.56%	34.54%
Depreciation, Depletion And Amortization	$3.630M	$3.020M	$2.720M
YoY Change	53.16%	14.83%	7.94%
Cash From Operating Activities	$7.330M	$6.340M	$6.530M
YoY Change	7.95%	25.79%	30.6%
INVESTING ACTIVITIES
Capital Expenditures	-$7.460M	-$96.15M	-$1.870M
YoY Change	-76.72%	19130.0%	-66.18%
Acquisitions
YoY Change
Other Investing Activities	$100.0K	$150.0K	$18.70M
YoY Change	-99.11%	-99.17%	166.38%
Cash From Investing Activities	-$7.360M	-$96.00M	$16.83M
YoY Change	-64.53%	-648.57%	1022.0%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-2.240M	67.63M	1.190M
YoY Change	-117.11%	-401.25%	-114.27%
NET CHANGE
Cash From Operating Activities	7.330M	6.340M	6.530M
Cash From Investing Activities	-7.360M	-96.00M	16.83M
Cash From Financing Activities	-2.240M	67.63M	1.190M
Net Change In Cash	-2.270M	-22.03M	24.55M
YoY Change	160.92%	-24577.78%	-1434.24%
FREE CASH FLOW
Cash From Operating Activities	$7.330M	$6.340M	$6.530M
Capital Expenditures	-$7.460M	-$96.15M	-$1.870M
Free Cash Flow	$14.79M	$102.5M	$8.400M
YoY Change	-61.91%	1750.0%	-20.23%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2012Q4	olp	Availableforsale Securities Cumulative Net Unrealized Gain AvailableforsaleSecuritiesCumulativeNetUnrealizedGain	98000	USD
CY2013Q4	olp	Availableforsale Securities Cumulative Net Unrealized Gain AvailableforsaleSecuritiesCumulativeNetUnrealizedGain	145000	USD
CY2011	us-gaap	Impairment Of Investments ImpairmentOfInvestments	126000	USD
CY2013	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	19000	USD
CY2012	us-gaap	Proceeds From Sale Of Available For Sale Securities ProceedsFromSaleOfAvailableForSaleSecurities	373000	USD
CY2013	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	6000	USD
CY2012	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	9000	USD
CY2011	us-gaap	Participating Securities Distributed And Undistributed Earnings ParticipatingSecuritiesDistributedAndUndistributedEarnings	460000	USD
CY2012	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	100000	shares
CY2011	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	50000	shares
CY2012Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.18
CY2012Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.39
CY2012	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-12000	USD
CY2013	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	49000	USD
CY2013	olp	Property Plant And Equipment And Intangible Assets Liabilities Useful Life Maximum PropertyPlantAndEquipmentAndIntangibleAssetsLiabilitiesUsefulLifeMaximum	P55Y
CY2012Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	1104000	USD
CY2013Q4	us-gaap	Restricted Cash And Cash Equivalents RestrictedCashAndCashEquivalents	1453000	USD
CY2012Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	132000	USD
CY2013Q4	us-gaap	Allowance For Doubtful Accounts Receivable AllowanceForDoubtfulAccountsReceivable	0	USD
CY2013	dei	Entity Registrant Name EntityRegistrantName	ONE LIBERTY PROPERTIES INC
CY2013	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	100000	shares
CY2010Q3	olp	Incremental Common Shares Attributable To Share Based Payment Arrangements Underlying Shares IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsUnderlyingShares	200000	shares
CY2012	olp	Incremental Common Shares Not Including In Computation Of Earning Per Share IncrementalCommonSharesNotIncludingInComputationOfEarningPerShare	100000	shares
CY2011	olp	Incremental Common Shares Not Including In Computation Of Earning Per Share IncrementalCommonSharesNotIncludingInComputationOfEarningPerShare	100000	shares
CY2013	olp	Incremental Common Shares Not Including In Computation Of Earning Per Share IncrementalCommonSharesNotIncludingInComputationOfEarningPerShare	100000	shares
CY2012	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	11328000	USD
CY2013	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	17409000	USD
CY2013	us-gaap	Participating Securities Distributed And Undistributed Earnings ParticipatingSecuritiesDistributedAndUndistributedEarnings	667000	USD
CY2012	olp	Net Income Loss From Continuing Operations Available To Common Stockholders NetIncomeLossFromContinuingOperationsAvailableToCommonStockholders	11340000	USD
CY2013	olp	Net Income Loss From Continuing Operations Available To Common Stockholders NetIncomeLossFromContinuingOperationsAvailableToCommonStockholders	16693000	USD
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	20980000	USD
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	515000	USD
CY2012	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	14427000	shares
CY2012	us-gaap	Incremental Common Shares Attributable To Participating Nonvested Shares With Non Forfeitable Dividend Rights IncrementalCommonSharesAttributableToParticipatingNonvestedSharesWithNonForfeitableDividendRights	411000	shares
CY2012	olp	Weighted Average Number Of Shares Outstanding Including Unvested Restricted Stock Shares Basic WeightedAverageNumberOfSharesOutstandingIncludingUnvestedRestrictedStockSharesBasic	14838000	shares
CY2013Q4	us-gaap	Number Of States In Which Entity Operates NumberOfStatesInWhichEntityOperates	29	item
CY2013Q4	us-gaap	Number Of Real Estate Properties NumberOfRealEstateProperties	109	property
CY2013	us-gaap	Tenant Reimbursements TenantReimbursements	1694000	USD
CY2012	us-gaap	Tenant Reimbursements TenantReimbursements	947000	USD
CY2011	us-gaap	Tenant Reimbursements TenantReimbursements	794000	USD
CY2013	olp	Property Plant And Equipment And Intangible Assets Liabilities Useful Life Minimum PropertyPlantAndEquipmentAndIntangibleAssetsLiabilitiesUsefulLifeMinimum	P1Y
CY2013	dei	Entity Central Index Key EntityCentralIndexKey	0000712770
CY2013	dei	Document Type DocumentType	10-K
CY2013	dei	Document Period End Date DocumentPeriodEndDate	2013-12-31
CY2013	dei	Amendment Flag AmendmentFlag	false
CY2013	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2013	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2013	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2013	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2013
CY2013	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2014Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	15870172	shares
CY2012	us-gaap	Depreciation And Amortization DepreciationAndAmortization	9564000	USD
CY2011	us-gaap	Depreciation And Amortization DepreciationAndAmortization	8792000	USD
CY2013	us-gaap	Depreciation And Amortization DepreciationAndAmortization	11919000	USD
CY2013Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	3908000	USD
CY2012Q4	us-gaap	Accumulated Amortization Deferred Finance Costs AccumulatedAmortizationDeferredFinanceCosts	3096000	USD
CY2013	olp	Common Stock Dividends Cash Paid Capital Gain Percentage CommonStockDividendsCashPaidCapitalGainPercentage	0.27	pure
CY2013	olp	Federal Excise Tax Accrued On Undistributed Taxable Income FederalExciseTaxAccruedOnUndistributedTaxableIncome	45000	USD
CY2012	olp	Federal Excise Tax Accrued On Undistributed Taxable Income FederalExciseTaxAccruedOnUndistributedTaxableIncome	290000	USD
CY2013	olp	Weighted Average Number Of Shares Outstanding Including Unvested Restricted Stock Shares Basic WeightedAverageNumberOfSharesOutstandingIncludingUnvestedRestrictedStockSharesBasic	14948000	shares
CY2012	olp	Weighted Average Number Of Diluted Shares Including Unvested Restricted Stock Shares Outstanding WeightedAverageNumberOfDilutedSharesIncludingUnvestedRestrictedStockSharesOutstanding	14938000	shares
CY2013	olp	Weighted Average Number Of Diluted Shares Including Unvested Restricted Stock Shares Outstanding WeightedAverageNumberOfDilutedSharesIncludingUnvestedRestrictedStockSharesOutstanding	15048000	shares
CY2012	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	2.18
CY2012	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	2.16
CY2013	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.15
CY2013	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.14
CY2012	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	11340000	USD
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	20980000	USD
CY2012	us-gaap	Net Income Loss NetIncomeLoss	32320000	USD
CY2013	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	17360000	USD
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	515000	USD
CY2013	us-gaap	Net Income Loss NetIncomeLoss	17875000	USD
CY2013	olp	Number Of Properties As Transferred Assets And Liabilities Which Sold To Be Reclassified As Properties Held For Sale NumberOfPropertiesAsTransferredAssetsAndLiabilitiesWhichSoldToBeReclassifiedAsPropertiesHeldForSale	2	item
CY2013	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	item
CY2013	us-gaap	Asset Impairment Charges AssetImpairmentCharges	62000	USD
CY2013	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	107529000	USD
CY2012	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	44616000	USD
CY2013	olp	Real Estate Properties Acquisition Occupancy Percentage RealEstatePropertiesAcquisitionOccupancyPercentage	1.00	pure
CY2012	olp	Acquired Finite Lived Intangible Liabilities Weighted Average Amortization Period AcquiredFiniteLivedIntangibleLiabilitiesWeightedAverageAmortizationPeriod	P16Y2M12D
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Current OperatingLeasesFutureMinimumPaymentsReceivableCurrent	53056000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Two Years OperatingLeasesFutureMinimumPaymentsReceivableInTwoYears	49432000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Three Years OperatingLeasesFutureMinimumPaymentsReceivableInThreeYears	47505000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Four Years OperatingLeasesFutureMinimumPaymentsReceivableInFourYears	45316000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Receivable In Five Years OperatingLeasesFutureMinimumPaymentsReceivableInFiveYears	42900000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Receivable Thereafter OperatingLeasesFutureMinimumPaymentsReceivableThereafter	233512000	USD
CY2013Q4	us-gaap	Operating Leases Future Minimum Payments Receivable OperatingLeasesFutureMinimumPaymentsReceivable	471721000	USD
CY2012	olp	Deferred Rent Receivable Written Off DeferredRentReceivableWrittenOff	256000	USD
CY2013Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	13743000	USD
CY2012Q4	us-gaap	Deferred Rent Receivables Net DeferredRentReceivablesNet	12629000	USD
CY2013	olp	Deferred Rent Receivable Period During Which Amount Of Rent To Be Billed And Received DeferredRentReceivablePeriodDuringWhichAmountOfRentToBeBilledAndReceived	P20Y
CY2013Q4	us-gaap	Land Land	153529000	USD
CY2012	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	36062000	USD
CY2012	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	19413000	USD
CY2011	us-gaap	Proceeds From Sale Of Real Estate Heldforinvestment ProceedsFromSaleOfRealEstateHeldforinvestment	11544000	USD
CY2011	us-gaap	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax	932000	USD
CY2013	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	5495000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	47000	USD
CY2012Q4	us-gaap	Real Estate Heldforsale RealEstateHeldforsale	5364000	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Rental Income DisposalGroupIncludingDiscontinuedOperationRentalIncome	2690000	USD
CY2011	us-gaap	Disposal Group Including Discontinued Operation Rental Income DisposalGroupIncludingDiscontinuedOperationRentalIncome	3377000	USD
CY2013	us-gaap	Disposal Group Including Discontinued Operation Rental Income DisposalGroupIncludingDiscontinuedOperationRentalIncome	973000	USD
CY2012	us-gaap	Depreciation And Amortization Discontinued Operations DepreciationAndAmortizationDiscontinuedOperations	402000	USD
CY2011	us-gaap	Depreciation And Amortization Discontinued Operations DepreciationAndAmortizationDiscontinuedOperations	647000	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Operating Expense DisposalGroupIncludingDiscontinuedOperationOperatingExpense	106000	USD
CY2011	us-gaap	Disposal Group Including Discontinued Operation Operating Expense DisposalGroupIncludingDiscontinuedOperationOperatingExpense	257000	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Interest Expense DisposalGroupIncludingDiscontinuedOperationInterestExpense	615000	USD
CY2011	us-gaap	Disposal Group Including Discontinued Operation Interest Expense DisposalGroupIncludingDiscontinuedOperationInterestExpense	773000	USD
CY2012	olp	Disposal Group Including Discontinued Operation Costs And Expenses DisposalGroupIncludingDiscontinuedOperationCostsAndExpenses	1123000	USD
CY2011	olp	Disposal Group Including Discontinued Operation Costs And Expenses DisposalGroupIncludingDiscontinuedOperationCostsAndExpenses	1677000	USD
CY2013	us-gaap	Depreciation And Amortization Discontinued Operations DepreciationAndAmortizationDiscontinuedOperations	125000	USD
CY2013	us-gaap	Disposal Group Including Discontinued Operation Operating Expense DisposalGroupIncludingDiscontinuedOperationOperatingExpense	12000	USD
CY2013	us-gaap	Disposal Group Including Discontinued Operation Interest Expense DisposalGroupIncludingDiscontinuedOperationInterestExpense	259000	USD
CY2012	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	1567000	USD
CY2011	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	1700000	USD
CY2013	us-gaap	Discontinued Operation Income Loss From Discontinued Operation During Phase Out Period Net Of Tax DiscontinuedOperationIncomeLossFromDiscontinuedOperationDuringPhaseOutPeriodNetOfTax	577000	USD
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	2632000	USD
CY2013Q4	olp	Number Of Properties Owned And Operated By Each Unconsolidated Joint Venture NumberOfPropertiesOwnedAndOperatedByEachUnconsolidatedJointVenture	1	property
CY2012Q4	olp	Number Of Properties Owned And Operated By Each Unconsolidated Joint Venture NumberOfPropertiesOwnedAndOperatedByEachUnconsolidatedJointVenture	1	property
CY2013Q4	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	4906000	USD
CY2012Q4	us-gaap	Real Estate Investments Unconsolidated Real Estate And Other Joint Ventures RealEstateInvestmentsUnconsolidatedRealEstateAndOtherJointVentures	19485000	USD
CY2013	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	4705000	USD
CY2013	olp	Number Of Properties Sold NumberOfPropertiesSold	2	property
CY2013	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	651000	USD
CY2012	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	1368000	USD
CY2011	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	914000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	36172000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	32679000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	14643000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	44595000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	18696000	USD
CY2013Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	131260000	USD
CY2013Q4	us-gaap	Secured Debt SecuredDebt	278045000	USD
CY2011Q2	us-gaap	Asset Impairment Charges AssetImpairmentCharges	0	USD
CY2013Q4	us-gaap	Available For Sale Equity Securities Amortized Cost Basis AvailableForSaleEquitySecuritiesAmortizedCostBasis	138000	USD
CY2013Q4	olp	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	144000	USD
CY2011	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	126000	USD
CY2013	olp	Number Of Derivative Agreements In Which Parent Company Could Be Liable In Event Of Subsidiary Default NumberOfDerivativeAgreementsInWhichParentCompanyCouldBeLiableInEventOfSubsidiaryDefault	1	item
CY2011Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	0	shares
CY2013Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	0	shares
CY2012Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	0	shares
CY2013Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions	4219000	USD
CY2013	olp	Share Based Compensation Arrangement By Share Based Payment Award Weighted Average Award Vesting Period ShareBasedCompensationArrangementByShareBasedPaymentAwardWeightedAverageAwardVestingPeriod	P2Y7M6D
CY2012Q4	us-gaap	Land Land	136727000	USD
CY2012Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	329486000	USD
CY2012Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	466213000	USD
CY2012Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	61052000	USD
CY2012Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	405161000	USD
CY2012Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	14577000	USD
CY2012Q4	olp	Unamortized Intangible Lease Assets UnamortizedIntangibleLeaseAssets	16491000	USD
CY2012Q4	olp	Escrow Deposits And Other Assets And Receivables EscrowDepositsAndOtherAssetsAndReceivables	3741000	USD
CY2012Q4	olp	Investment In Related Party InvestmentInRelatedParty	241000	USD
CY2012Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	3477000	USD
CY2012Q4	us-gaap	Assets Assets	481166000	USD
CY2013Q4	us-gaap	Assets Assets	571898000	USD
CY2012Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	196107000	USD
CY2012Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-1578000	USD
CY2012Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	28001000	USD
CY2012Q4	us-gaap	Stockholders Equity StockholdersEquity	237128000	USD
CY2012Q4	us-gaap	Minority Interest MinorityInterest	931000	USD
CY2012Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	238059000	USD
CY2012Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	481166000	USD
CY2013Q4	us-gaap	Real Estate Investment Property Net RealEstateInvestmentPropertyNet	496187000	USD
CY2013Q4	us-gaap	Real Estate Investment Property At Cost RealEstateInvestmentPropertyAtCost	567358000	USD
CY2012Q4	us-gaap	Secured Debt SecuredDebt	225971000	USD
CY2012Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	5252000	USD
CY2012Q4	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	6584000	USD
CY2012Q4	us-gaap	Off Market Lease Unfavorable OffMarketLeaseUnfavorable	5300000	USD
CY2012Q4	us-gaap	Liabilities Liabilities	243107000	USD
CY2013Q4	us-gaap	Line Of Credit LineOfCredit	23250000	USD
CY2013Q4	us-gaap	Liabilities Liabilities	321808000	USD
CY2012Q4	us-gaap	Common Stock Value CommonStockValue	14598000	USD
CY2013Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q4	us-gaap	Commitments And Contingencies CommitmentsAndContingencies		USD
CY2012Q4	us-gaap	Preferred Stock Value PreferredStockValue		USD
CY2013Q4	us-gaap	Preferred Stock Value PreferredStockValue		USD
CY2013Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	571898000	USD
CY2013Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	250090000	USD
CY2013Q4	us-gaap	Stockholders Equity StockholdersEquity	248932000	USD
CY2012Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2012Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	12500000	shares
CY2012Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2012Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2012Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	25000000	shares
CY2013Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	15221000	shares
CY2012Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	14598000	shares
CY2012Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	14598000	shares
CY2013Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	15221000	shares
CY2013Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	1
CY2013Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	12500000	shares
CY2013Q4	us-gaap	Preferred Stock Shares Issued PreferredStockSharesIssued	0	shares
CY2013Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	1
CY2013Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	25000000	shares
CY2013	us-gaap	Profit Loss ProfitLoss	17924000	USD
CY2013	us-gaap	Operating Income Loss OperatingIncomeLoss	26562000	USD
CY2013	us-gaap	Operating Expenses OperatingExpenses	24417000	USD
CY2012	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	7317000	USD
CY2011	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	6849000	USD
CY2012	olp	Federal Excise And State Tax Paid And Or Accrued FederalExciseAndStateTaxPaidAndOrAccrued	457000	USD
CY2011	olp	Federal Excise And State Tax Paid And Or Accrued FederalExciseAndStateTaxPaidAndOrAccrued	168000	USD
CY2012	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	2618000	USD
CY2011	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	2331000	USD
CY2012	olp	Leasehold Rent LeaseholdRent	308000	USD
CY2011	olp	Leasehold Rent LeaseholdRent	308000	USD
CY2012	olp	Costs Of Acquiring Real Estate CostsOfAcquiringRealEstate	823000	USD
CY2011	olp	Costs Of Acquiring Real Estate CostsOfAcquiringRealEstate	213000	USD
CY2012	us-gaap	Operating Expenses OperatingExpenses	21087000	USD
CY2011	us-gaap	Operating Expenses OperatingExpenses	18661000	USD
CY2012	us-gaap	Operating Income Loss OperatingIncomeLoss	22706000	USD
CY2011	us-gaap	Operating Income Loss OperatingIncomeLoss	22213000	USD
CY2013	olp	Gain Loss On Disposition Of Real Estate In Unconsolidated Joint Venture GainLossOnDispositionOfRealEstateInUnconsolidatedJointVenture	2807000	USD
CY2011	us-gaap	Costs And Expenses Related Party CostsAndExpensesRelatedParty	2687000	USD
CY2011	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	13851000	shares
CY2012	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.77
CY2011	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-4000	USD
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	1.41
CY2011	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	-35000	USD
CY2012	us-gaap	Interest Expense InterestExpense	12532000	USD
CY2011	us-gaap	Interest Expense InterestExpense	12429000	USD
CY2011	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	1240000	USD
CY2012	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	241000	USD
CY2012	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	774000	USD
CY2011	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	815000	USD
CY2012	us-gaap	Gain Loss On Sale Of Properties GainLossOnSaleOfProperties	319000	USD
CY2011	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	11088000	USD
CY2012	us-gaap	Profit Loss ProfitLoss	32308000	USD
CY2011	us-gaap	Profit Loss ProfitLoss	13720000	USD
CY2011	us-gaap	Net Income Loss Attributable To Noncontrolling Interest NetIncomeLossAttributableToNoncontrollingInterest	-4000	USD
CY2011	us-gaap	Net Income Loss NetIncomeLoss	13724000	USD
CY2011	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	13801000	shares
CY2012	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	14527000	shares
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.19
CY2011	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.96
CY2012	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.76
CY2012	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	1.40
CY2011	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.77
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.19
CY2011	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.96
CY2013	us-gaap	Equity Method Investment Realized Gain Loss On Disposal EquityMethodInvestmentRealizedGainLossOnDisposal	1898000	USD
CY2012	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	43793000	USD
CY2011	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	40874000	USD
CY2012	us-gaap	Costs And Expenses Related Party CostsAndExpensesRelatedParty	2681000	USD
CY2013	us-gaap	Costs And Expenses Related Party CostsAndExpensesRelatedParty	2681000	USD
CY2011	olp	Real Estate Costs And Expenses Related Party RealEstateCostsAndExpensesRelatedParty	600000	USD
CY2012	olp	Real Estate Costs And Expenses Related Party RealEstateCostsAndExpensesRelatedParty	600000	USD
CY2013	olp	Real Estate Costs And Expenses Related Party RealEstateCostsAndExpensesRelatedParty	600000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	11000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Net Of Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentNetOfTax	66000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-747000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	-547000	USD
CY2012	olp	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax The Company Share From Joint Venture OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTaxTheCompanyShareFromJointVenture	-23000	USD
CY2012	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-559000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	31749000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	-12000	USD
CY2012	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	31761000	USD
CY2011	olp	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax The Company Share From Joint Venture OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTaxTheCompanyShareFromJointVenture	-182000	USD
CY2011	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	-863000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	12857000	USD
CY2011	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	12861000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Net Of Tax OtherComprehensiveIncomeLossNetOfTax	1084000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Including Portion Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxIncludingPortionAttributableToNoncontrollingInterest	19008000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	18955000	USD
CY2011Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	218947000	USD
CY2010Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	179183000	USD
CY2011	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	19088000	USD
CY2012	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	19924000	USD
CY2011	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	40569000	USD
CY2011	us-gaap	Share Based Compensation ShareBasedCompensation	1009000	USD
CY2012	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	2131000	USD
CY2011	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	3751000	USD
CY2012	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	3652000	USD
CY2011	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	666000	USD
CY2012	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	571000	USD
CY2012	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	290000	USD
CY2011	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	1009000	USD
CY2012	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	1223000	USD
CY2011	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.32
CY2012	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.34
CY2013	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	1.42
CY2011	us-gaap	Payments Of Stock Issuance Costs PaymentsOfStockIssuanceCosts	282000	USD
CY2012	olp	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax Cash Flow Impact DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTaxCashFlowImpact	19741000	USD
CY2011	olp	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax Cash Flow Impact DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTaxCashFlowImpact	932000	USD
CY2012	us-gaap	Straight Line Rent StraightLineRent	1354000	USD
CY2012	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-117000	USD
CY2011	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	467000	USD
CY2012	us-gaap	Share Based Compensation ShareBasedCompensation	1223000	USD
CY2012	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	1016000	USD
CY2011	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	902000	USD
CY2012	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	9966000	USD
CY2011	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	9439000	USD
CY2012	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	800000	USD
CY2011	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	850000	USD
CY2012	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	492000	USD
CY2011	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	395000	USD
CY2012	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	71000	USD
CY2011	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	33000	USD
CY2012	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	22314000	USD
CY2011	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	21636000	USD
CY2012	us-gaap	Payments To Acquire And Develop Real Estate PaymentsToAcquireAndDevelopRealEstate	44088000	USD
CY2011	us-gaap	Payments To Acquire And Develop Real Estate PaymentsToAcquireAndDevelopRealEstate	25668000	USD
CY2012	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	4969000	USD
CY2011	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	3746000	USD
CY2012	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	145000	USD
CY2011	us-gaap	Proceeds From Equity Method Investment Dividends Or Distributions Return Of Capital ProceedsFromEquityMethodInvestmentDividendsOrDistributionsReturnOfCapital	95000	USD
CY2011	us-gaap	Payments To Acquire Businesses And Interest In Affiliates PaymentsToAcquireBusinessesAndInterestInAffiliates	669000	USD
CY2012	us-gaap	Payments For Lease Commissions PaymentsForLeaseCommissions	438000	USD
CY2011	us-gaap	Payments For Lease Commissions PaymentsForLeaseCommissions	183000	USD
CY2012	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-12915000	USD
CY2011	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-18627000	USD
CY2012	olp	Payments Of Amortization Of Mortgages Payable PaymentsOfAmortizationOfMortgagesPayable	5533000	USD
CY2011	olp	Payments Of Amortization Of Mortgages Payable PaymentsOfAmortizationOfMortgagesPayable	5181000	USD
CY2012	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	32422000	USD
CY2011	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	15302000	USD
CY2012	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	65989000	USD
CY2011	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	12455000	USD
CY2012	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	2131000	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	40569000	USD
CY2012	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	14550000	USD
CY2011	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	28500000	USD
CY2012	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	34550000	USD
CY2011	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	44700000	USD
CY2012	us-gaap	Proceeds From Issuance Of Common Stock Dividend Reinvestment Plan ProceedsFromIssuanceOfCommonStockDividendReinvestmentPlan	3652000	USD
CY2011	us-gaap	Proceeds From Issuance Of Common Stock Dividend Reinvestment Plan ProceedsFromIssuanceOfCommonStockDividendReinvestmentPlan	3751000	USD
CY2012	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	2111000	USD
CY2011	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	741000	USD
CY2012	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	571000	USD
CY2011	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	666000	USD
CY2012	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	290000	USD
CY2012	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	19477000	USD
CY2011	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	18090000	USD
CY2012	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-7490000	USD
CY2011	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1927000	USD
CY2012	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	1909000	USD
CY2011	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	4936000	USD
CY2012	us-gaap	Interest Paid InterestPaid	13088000	USD
CY2012	us-gaap	Income Taxes Paid IncomeTaxesPaid	68000	USD
CY2011	us-gaap	Income Taxes Paid IncomeTaxesPaid	70000	USD
CY2012	us-gaap	Contribution Of Property ContributionOfProperty	11734000	USD
CY2012	olp	Noncash Allocation Of Intangible Lease Assets NoncashAllocationOfIntangibleLeaseAssets	6641000	USD
CY2012	olp	Noncash Allocation Of Intangible Lease Liability NoncashAllocationOfIntangibleLeaseLiability	-588000	USD
CY2011	olp	Settlement Of Mortgage Debt SettlementOfMortgageDebt	1259000	USD
CY2011	olp	Noncash Allocation Of Intangible Lease Assets NoncashAllocationOfIntangibleLeaseAssets	2387000	USD
CY2011	olp	Noncash Allocation Of Intangible Lease Liability NoncashAllocationOfIntangibleLeaseLiability	-614000	USD
CY2011	olp	Reclassification Of Prepaid Allowance To Properties Improvement ReclassificationOfPrepaidAllowanceToPropertiesImprovement	1750000	USD
CY2013	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	26937000	USD
CY2013	us-gaap	Proceeds From Divestiture Of Interest In Joint Venture ProceedsFromDivestitureOfInterestInJointVenture	13444000	USD
CY2013	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-91688000	USD
CY2013	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	66805000	USD
CY2013	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	2054000	USD
CY2010Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	7732000	USD
CY2011Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	12668000	USD
CY2013Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	16631000	USD
CY2013	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2013	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2013Q2	dei	Entity Public Float EntityPublicFloat	266600000	USD
CY2012	olp	Allowance For Doubtful Accounts Receivable Recoveries Number Of Tenants AllowanceForDoubtfulAccountsReceivableRecoveriesNumberOfTenants	1	item
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	32320000	USD
CY2013	us-gaap	Nature Of Operations NatureOfOperations	<div style="font-size:10.0pt;font-family:Times New Roman;"> <p style="FONT-FAMILY: times;"> </p> <p style="FONT-FAMILY: times;"><font size="2"><b>NOTE 1—ORGANIZATION AND BACKGROUND</b></font></p> <p style="FONT-FAMILY: times;"><font size="2">        One Liberty Properties, Inc. ("OLP") was incorporated in 1982 in Maryland. OLP is a self-administered and self-managed real estate investment trust ("REIT"). OLP acquires, owns and manages a geographically diversified portfolio of retail, industrial, flex, office, health and fitness and other properties, a substantial portion of which are subject to long-term net leases. As of December 31, 2013, OLP owned 109 properties, including five properties owned by consolidated joint ventures and five properties owned by unconsolidated joint ventures. The 109 properties are located in 29 states.</font></p> </div>
CY2013Q4	olp	Number Of Properties Held For Sale NumberOfPropertiesHeldForSale	2	property
CY2013	olp	Subsequent Disqualification Period If Failed To Qualify As Reit SubsequentDisqualificationPeriodIfFailedToQualifyAsREIT	P4Y
CY2013	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	9000	USD
CY2012	us-gaap	Interest Paid Capitalized InterestPaidCapitalized	35000	USD
CY2013Q4	us-gaap	Investment Building And Building Improvements InvestmentBuildingAndBuildingImprovements	413829000	USD
CY2011	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	255000	shares
CY2012	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.34
CY2011	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.32
CY2013	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	1.42
CY2012	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	215000	shares
CY2013	us-gaap	Stock Issued During Period Shares Dividend Reinvestment Plan StockIssuedDuringPeriodSharesDividendReinvestmentPlan	210000	shares
CY2012	us-gaap	Pension Expense PensionExpense	128000	USD
CY2011	us-gaap	Pension Expense PensionExpense	119000	USD
CY2013	us-gaap	Pension Expense PensionExpense	147000	USD
CY2013	olp	Operating Leases Annual Fixed Rent OperatingLeasesAnnualFixedRent	296875	USD
CY2013	olp	Operating Leases Percentage Increase In Rent Every Five Years OperatingLeasesPercentageIncreaseInRentEveryFiveYears	0.25	pure
CY2013	olp	Operating Leases Frequency For Increase In Rent OperatingLeasesFrequencyForIncreaseInRent	P5Y
CY2013	olp	Operating Leases Number Of Five Year Extension Options OperatingLeasesNumberOfFiveYearExtensionOptions	5	item
CY2013	olp	Operating Leases Extension Period First Five Renewal Options OperatingLeasesExtensionPeriodFirstFiveRenewalOptions	P5Y
CY2013	olp	Operating Leases Number Of Seven Months Extension Options OperatingLeasesNumberOfSevenMonthsExtensionOptions	1	item
CY2013	olp	Operating Leases Extension Period Last Renewal Option OperatingLeasesExtensionPeriodLastRenewalOption	P7M
CY2012	olp	Reconciliation Of Income From Book Basis To Tax Basis Rent Adjustment ReconciliationOfIncomeFromBookBasisToTaxBasisRentAdjustment	919000	USD
CY2011	olp	Reconciliation Of Income From Book Basis To Tax Basis Rent Adjustment ReconciliationOfIncomeFromBookBasisToTaxBasisRentAdjustment	1419000	USD
CY2011	olp	Reconciliation Of Income From Book Basis To Tax Basis Gain On Sales Of Properties ReconciliationOfIncomeFromBookBasisToTaxBasisGainOnSalesOfProperties	61000	USD
CY2013Q2	olp	Revenues Including Revenue From Discontinued Operations As Previously Reported RevenuesIncludingRevenueFromDiscontinuedOperationsAsPreviouslyReported	12227000	USD
CY2013Q2	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	-246000	USD
CY2013Q2	us-gaap	Revenues Revenues	11981000	USD
CY2013Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	7607000	USD
CY2013Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	145000	USD
CY2013Q2	us-gaap	Profit Loss ProfitLoss	7752000	USD
CY2013Q2	us-gaap	Net Income Loss NetIncomeLoss	7736000	USD
CY2011	olp	Reconciliation Of Income From Book Basis To Tax Basis Rental Income Advance Net ReconciliationOfIncomeFromBookBasisToTaxBasisRentalIncomeAdvanceNet	-78000	USD
CY2011	olp	Reconciliation Of Income From Book Basis To Tax Basis Financial Statement Adjustment For Above And Below Market Leases ReconciliationOfIncomeFromBookBasisToTaxBasisFinancialStatementAdjustmentForAboveAndBelowMarketLeases	31000	USD
CY2011	olp	Reconciliation Of Income From Book Basis To Tax Basis Non Deductible Share Based Compensation Cost ReconciliationOfIncomeFromBookBasisToTaxBasisNonDeductibleShareBasedCompensationCost	300000	USD
CY2011	olp	Reconciliation Of Income From Book Basis To Tax Basis Depreciation And Amortization ReconciliationOfIncomeFromBookBasisToTaxBasisDepreciationAndAmortization	1042000	USD
CY2011	olp	Reconciliation Of Income From Book Basis To Tax Basis Property Acquisition Cost Capitalized For Tax Purpose ReconciliationOfIncomeFromBookBasisToTaxBasisPropertyAcquisitionCostCapitalizedForTaxPurpose	268000	USD
CY2011	olp	Reconciliation Of Income From Book Basis To Tax Basis Other Adjustments ReconciliationOfIncomeFromBookBasisToTaxBasisOtherAdjustments	-516000	USD
CY2011	olp	Reconciliation Of Income From Book Basis To Tax Basis Profit Loss Tax Basis ReconciliationOfIncomeFromBookBasisToTaxBasisProfitLossTaxBasis	13413000	USD
CY2011	olp	Cash Dividends Paid Reconciliation CashDividendsPaidReconciliation	14758000	USD
CY2011	olp	Dividend Reinvestment Plan Common Stock Discount On Shares DividendReinvestmentPlanCommonStockDiscountOnShares	153000	USD
CY2011	olp	Dividends Designated To Previous Year DividendsDesignatedToPreviousYear	1448000	USD
CY2011	olp	Dividends Before Adjustments For Previous And Current Year DividendsBeforeAdjustmentsForPreviousAndCurrentYear	14911000	USD
CY2011	olp	Dividend Paid Deduction From Taxable Income DividendPaidDeductionFromTaxableIncome	13463000	USD
CY2013Q1	olp	Revenues Including Revenue From Discontinued Operations As Previously Reported RevenuesIncludingRevenueFromDiscontinuedOperationsAsPreviouslyReported	12102000	USD
CY2013Q1	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	-240000	USD
CY2013Q1	us-gaap	Revenues Revenues	11862000	USD
CY2013Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	3313000	USD
CY2013Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	136000	USD
CY2013Q1	us-gaap	Profit Loss ProfitLoss	3449000	USD
CY2013Q1	us-gaap	Net Income Loss NetIncomeLoss	3450000	USD
CY2013Q3	olp	Revenues Including Revenue From Discontinued Operations As Previously Reported RevenuesIncludingRevenueFromDiscontinuedOperationsAsPreviouslyReported	13214000	USD
CY2013Q3	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	-244000	USD
CY2013Q3	us-gaap	Revenues Revenues	12970000	USD
CY2013Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	3084000	USD
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	144000	USD
CY2013Q3	us-gaap	Profit Loss ProfitLoss	3228000	USD
CY2013Q3	us-gaap	Net Income Loss NetIncomeLoss	3211000	USD
CY2013Q4	olp	Revenues Including Revenue From Discontinued Operations As Previously Reported RevenuesIncludingRevenueFromDiscontinuedOperationsAsPreviouslyReported	14166000	USD
CY2013	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	-730000	USD
CY2013Q4	us-gaap	Revenues Revenues	14166000	USD
CY2013Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	3405000	USD
CY2013Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	90000	USD
CY2013Q4	us-gaap	Profit Loss ProfitLoss	3495000	USD
CY2013Q4	us-gaap	Net Income Loss NetIncomeLoss	3478000	USD
CY2013Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	14672000	shares
CY2013Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	14772000	shares
CY2013Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	14844000	shares
CY2013Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	14944000	shares
CY2013Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15093000	shares
CY2013Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15193000	shares
CY2013Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	15178000	shares
CY2013Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15278000	shares
CY2013Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.21
CY2013Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.01
CY2013Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.22
CY2013Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.50
CY2013Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.01
CY2013Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.51
CY2013Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.19
CY2013Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.22
CY2013Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.21
CY2013Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.01
CY2012Q3	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.19
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	1.05
CY2013Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.21
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.01
CY2013Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.20
CY2012Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.24
CY2012Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.19
CY2013Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.01
CY2013Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.22
CY2013Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.21
CY2013Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.01
CY2013Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.22
CY2013Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.49
CY2013Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.01
CY2013Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.50
CY2013Q3	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.19
CY2013Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.01
CY2013Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.20
CY2012Q1	olp	Revenues Including Revenue From Discontinued Operations As Previously Reported RevenuesIncludingRevenueFromDiscontinuedOperationsAsPreviouslyReported	10758000	USD
CY2012Q1	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	-237000	USD
CY2012Q1	us-gaap	Revenues Revenues	10521000	USD
CY2012Q1	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	2833000	USD
CY2012Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	393000	USD
CY2012Q1	us-gaap	Profit Loss ProfitLoss	3226000	USD
CY2012Q1	us-gaap	Net Income Loss NetIncomeLoss	3223000	USD
CY2012Q2	olp	Revenues Including Revenue From Discontinued Operations As Previously Reported RevenuesIncludingRevenueFromDiscontinuedOperationsAsPreviouslyReported	11102000	USD
CY2012Q2	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	-240000	USD
CY2012Q2	us-gaap	Revenues Revenues	10862000	USD
CY2012Q2	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	3137000	USD
CY2012Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	2617000	USD
CY2012Q2	us-gaap	Profit Loss ProfitLoss	5754000	USD
CY2012Q2	us-gaap	Net Income Loss NetIncomeLoss	5750000	USD
CY2013	olp	Revenues Including Revenue From Discontinued Operations As Previously Reported RevenuesIncludingRevenueFromDiscontinuedOperationsAsPreviouslyReported	51709000	USD
CY2013	us-gaap	Revenues Revenues	50979000	USD
CY2013	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	15048000	shares
CY2013	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	1.12
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.03
CY2013	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	1.11
CY2013	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.03
CY2012Q3	olp	Revenues Including Revenue From Discontinued Operations As Previously Reported RevenuesIncludingRevenueFromDiscontinuedOperationsAsPreviouslyReported	11333000	USD
CY2012Q3	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	-240000	USD
CY2012Q3	us-gaap	Revenues Revenues	11093000	USD
CY2012Q3	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	2867000	USD
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	15553000	USD
CY2012Q3	us-gaap	Profit Loss ProfitLoss	18420000	USD
CY2012Q3	us-gaap	Net Income Loss NetIncomeLoss	18414000	USD
CY2012Q4	olp	Revenues Including Revenue From Discontinued Operations As Previously Reported RevenuesIncludingRevenueFromDiscontinuedOperationsAsPreviouslyReported	11557000	USD
CY2012Q4	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	-240000	USD
CY2012Q4	us-gaap	Revenues Revenues	11317000	USD
CY2012Q4	us-gaap	Income Loss From Continuing Operations Including Portion Attributable To Noncontrolling Interest IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest	2491000	USD
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax IncomeLossFromDiscontinuedOperationsNetOfTax	2417000	USD
CY2012Q4	us-gaap	Profit Loss ProfitLoss	4908000	USD
CY2012Q4	us-gaap	Net Income Loss NetIncomeLoss	4933000	USD
CY2012Q1	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	14289000	shares
CY2012Q1	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	14389000	shares
CY2012Q2	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	14378000	shares
CY2012Q2	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	14478000	shares
CY2012Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	14443000	shares
CY2012Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	14543000	shares
CY2012Q4	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	14596000	shares
CY2012Q4	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	14696000	shares
CY2012	olp	Revenues Including Revenue From Discontinued Operations As Previously Reported RevenuesIncludingRevenueFromDiscontinuedOperationsAsPreviouslyReported	44750000	USD
CY2012	us-gaap	Disposal Group Including Discontinued Operation Revenue DisposalGroupIncludingDiscontinuedOperationRevenue	-957000	USD
CY2012	us-gaap	Revenues Revenues	43793000	USD
CY2012Q1	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.19
CY2012Q3	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	1.04
CY2012Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.03
CY2012Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.22
CY2012Q1	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.19
CY2012Q1	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.02
CY2012Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.21
CY2012Q2	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.21
CY2012Q2	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.18
CY2012Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.39
CY2012Q2	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.21
CY2012Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.23
CY2012Q4	us-gaap	Income Loss From Continuing Operations Per Basic Share IncomeLossFromContinuingOperationsPerBasicShare	0.16
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Basic Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare	0.17
CY2012Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.33
CY2012Q4	us-gaap	Income Loss From Continuing Operations Per Diluted Share IncomeLossFromContinuingOperationsPerDilutedShare	0.16
CY2012Q4	us-gaap	Income Loss From Discontinued Operations Net Of Tax Per Diluted Share IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare	0.17
CY2012Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.33
CY2010Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	400795000	USD
CY2011Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	430337000	USD
CY2012Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	473341000	USD
CY2013Q4	us-gaap	Real Estate Gross At Carrying Value RealEstateGrossAtCarryingValue	574424000	USD
CY2013	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	101145000	USD
CY2012	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	43004000	USD
CY2011	us-gaap	Real Estate Other Acquisitions RealEstateOtherAcquisitions	29542000	USD
CY2013	us-gaap	Real Estate Cost Of Real Estate Sold RealEstateCostOfRealEstateSold	62000	USD
CY2010Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	46410000	USD
CY2011Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	54214000	USD
CY2012Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	62816000	USD
CY2013Q4	us-gaap	Real Estate Accumulated Depreciation RealEstateAccumulatedDepreciation	73060000	USD
CY2013	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	10244000	USD
CY2012	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	8602000	USD
CY2011	us-gaap	Real Estate Accumulated Depreciation Real Estate Sold RealEstateAccumulatedDepreciationRealEstateSold	733000	USD
CY2011	us-gaap	Sec Schedule Iii Real Estate Accumulated Depreciation Depreciation Expense SECScheduleIIIRealEstateAccumulatedDepreciationDepreciationExpense	8537000	USD
CY2013Q4	olp	Real Estate Federal Income Tax Basis Difference Amount RealEstateFederalIncomeTaxBasisDifferenceAmount	26297000	USD
CY2013	us-gaap	Dividends Common Stock Cash DividendsCommonStockCash	21999000	USD
CY2013	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	9165000	USD
CY2013	us-gaap	Stock Issued During Period Value Dividend Reinvestment Plan StockIssuedDuringPeriodValueDividendReinvestmentPlan	4235000	USD
CY2013	us-gaap	Noncontrolling Interest Increase From Business Combination NoncontrollingInterestIncreaseFromBusinessCombination	480000	USD
CY2013	us-gaap	Minority Interest Decrease From Distributions To Noncontrolling Interest Holders MinorityInterestDecreaseFromDistributionsToNoncontrollingInterestHolders	298000	USD
CY2013	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Restricted Stock Units Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationRestrictedStockUnitsRequisiteServicePeriodRecognition	1440000	USD
CY2013	olp	Acquired Finite Lived Intangible Liabilities Weighted Average Amortization Period AcquiredFiniteLivedIntangibleLiabilitiesWeightedAverageAmortizationPeriod	P6Y
CY2013	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	17208000	USD
CY2013	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-size:10.0pt;font-family:Times New Roman;"> <p style="FONT-FAMILY: times;"><font size="2"><b><i>Use of Estimates</i></b></font></p> <p style="FONT-FAMILY: times;"><font size="2">        The preparation of the consolidated financial statements in conformity with U.S. generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates.</font></p> <p style="FONT-FAMILY: times;"><font size="2">        Management believes that the estimates and assumptions that are most important to the portrayal of the Company's financial condition and results of operations, in that they require management's most difficult, subjective or complex judgments, form the basis of the accounting policies deemed to be most significant to the Company. These significant accounting policies relate to revenues and the value of the Company's real estate portfolio. Management believes its estimates and assumptions related to these significant accounting policies are appropriate under the circumstances; however, should future events or occurrences result in unanticipated consequences, there could be a material impact on the Company's future financial condition or results of operations.</font></p> </div>
CY2013	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<div style="font-size:10.0pt;font-family:Times New Roman;"> <p style="FONT-FAMILY: times;"><font size="2"><b><i>Concentration of Credit Risk</i></b></font></p> <p style="FONT-FAMILY: times;"><font size="2">        The Company maintains accounts at various financial institutions. While the Company attempts to limit any financial exposure, substantially all of its deposit balances exceed federally insured limits. The Company has not experienced any losses on such accounts.</font></p> <p style="FONT-FAMILY: times;"><font size="2">        Including the properties owned by our unconsolidated joint ventures, the Company's properties are located in 29 states. The following chart lists the states where the Company's properties contributed over 10% to the Company's rental income (amounts in thousands):</font></p> <div style="POSITION: relative; PADDING-BOTTOM: 0pt; PADDING-LEFT: 0pt; WIDTH: 70%; PADDING-RIGHT: 0pt; MARGIN-LEFT: 15%; PADDING-TOP: 0pt;"> <p style="FONT-FAMILY: times;"><font size="2"><!-- COMMAND=ADD_TABLEWIDTH,"100%" --></font></p> <!-- User-specified TAGGED TABLE --> <div align="center"> <table border="0" cellspacing="0" cellpadding="0" width="100%" style="text-align:left;"> <tr style="padding:0;"><!-- TABLE COLUMN WIDTHS SET --> <td style="FONT-FAMILY: times;" align="left"></td> <td style="FONT-FAMILY: times;" width="12"></td> <td style="FONT-FAMILY: times;" width="7" align="right"></td> <td style="FONT-FAMILY: times;" width="26"></td> <td style="FONT-FAMILY: times;" width="12"></td> <td style="FONT-FAMILY: times;" width="7" align="right"></td> <td style="FONT-FAMILY: times;" width="26"></td> <td style="FONT-FAMILY: times;" width="12"></td> <td style="FONT-FAMILY: times;" width="7" align="right"></td> <td style="FONT-FAMILY: times;" width="26"></td> <td style="FONT-FAMILY: times;" width="12"></td><!-- TABLE COLUMN WIDTHS END --></tr> <tr style="padding:0;" valign="bottom"> <th style="FONT-FAMILY: times;" align="left"><font size="2"> </font><br /></th> <th style="FONT-FAMILY: times;"><font size="1"> </font></th> <th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times;" colspan="2" align="center"><font size="1"><b>2013</b></font></th> <th style="FONT-FAMILY: times;"><font size="1"> </font></th> <th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times;" colspan="2" align="center"><font size="1"><b>2012</b></font></th> <th style="FONT-FAMILY: times;"><font size="1"> </font></th> <th style="BORDER-BOTTOM: #000000 1pt solid; FONT-FAMILY: times;" colspan="2" align="center"><font size="1"><b>2011</b></font></th> <th style="FONT-FAMILY: times;"><font size="1"> </font></th></tr> <tr style="padding:0;" valign="top" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times;" valign="bottom"> <p style="TEXT-INDENT: -10pt; FONT-FAMILY: times; MARGIN-LEFT: 10pt;"><font size="2">Texas</font></p></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">13.0</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2">%</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">10.8</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2">%</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">12.8</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2">%</font></td></tr> <tr style="padding:0;" valign="top" bgcolor="white"> <td style="FONT-FAMILY: times;" valign="bottom"> <p style="TEXT-INDENT: -10pt; FONT-FAMILY: times; MARGIN-LEFT: 10pt;"><font size="2">New York</font></p></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">11.0</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">12.8</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">13.8</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td></tr> <tr style="padding:0;" valign="top" bgcolor="#CCEEFF"> <td style="FONT-FAMILY: times;" valign="bottom"> <p style="TEXT-INDENT: -10pt; FONT-FAMILY: times; MARGIN-LEFT: 10pt;"><font size="2">New Jersey</font></p></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">10.7</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">8.3</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">5.9</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td></tr> <tr style="padding:0;" valign="top" bgcolor="white"> <td style="FONT-FAMILY: times;" valign="bottom"> <p style="TEXT-INDENT: -10pt; FONT-FAMILY: times; MARGIN-LEFT: 10pt;"><font size="2">Pennsylvania</font></p></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">8.8</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">10.1</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td> <td style="FONT-FAMILY: times;" valign="bottom" align="right"><font size="2">10.8</font></td> <td style="FONT-FAMILY: times;" valign="bottom"><font size="2"> </font></td></tr></table></div> <!-- end of user-specified TAGGED TABLE --></div> <p style="FONT-FAMILY: times;"><font size="2">        The Company owns eleven real estate investments that are located in six states and are net leased to Haverty Furniture Companies, Inc., a retail furniture company, pursuant to a master lease. The initial term of the net lease expires August 2022, with several renewal options. These real estate investments, which represented 9.5% of the depreciated book value of real estate investments at December 31, 2013, generated rental revenues of approximately $4,844,000 in each year or 9.5%, 11.1%, and 11.9%, of the Company's total revenues for 2013, 2012 and 2011, respectively.</font></p> </div>
CY2013	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="font-size:10.0pt;font-family:Times New Roman;"> <p style="FONT-FAMILY: times;"><font size="2"><b><i>Reclassification</i></b></font></p> <p style="FONT-FAMILY: times;"><font size="2">        Certain amounts reported in previous consolidated financial statements have been reclassified in the accompanying consolidated financial statements to conform to the current year's presentation, primarily to reclassify the two properties that were sold in February 2014 to properties held-for-sale at December 31, 2012 and to reclassify the operations of these properties to discontinued operations for all years presented.</font></p> </div>
CY2011Q1	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	26200000	USD
CY2011Q1	us-gaap	Payments To Acquire Real Estate PaymentsToAcquireRealEstate	2325000	USD
CY2012	olp	Reconciliation Of Income From Book Basis To Tax Basis Gain On Sales Of Properties ReconciliationOfIncomeFromBookBasisToTaxBasisGainOnSalesOfProperties	-445000	USD
CY2012	olp	Reconciliation Of Income From Book Basis To Tax Basis Rental Income Advance Net ReconciliationOfIncomeFromBookBasisToTaxBasisRentalIncomeAdvanceNet	97000	USD
CY2012	olp	Reconciliation Of Income From Book Basis To Tax Basis Financial Statement Adjustment For Above And Below Market Leases ReconciliationOfIncomeFromBookBasisToTaxBasisFinancialStatementAdjustmentForAboveAndBelowMarketLeases	6000	USD
CY2011	olp	Allowance For Doubtful Accounts Receivable Recoveries Number Of Tenants AllowanceForDoubtfulAccountsReceivableRecoveriesNumberOfTenants	1	item
CY2012	olp	Common Stock Dividends Cash Paid Capital Gain Percentage CommonStockDividendsCashPaidCapitalGainPercentage	0.73	pure
CY2013	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	17208000	USD
CY2012	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	32320000	USD
CY2013	olp	Number Of Unconsolidated Joint Ventures NumberOfUnconsolidatedJointVentures	5	item
CY2012	olp	Number Of Unconsolidated Joint Ventures NumberOfUnconsolidatedJointVentures	7	item
CY2011	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1009000	USD
CY2013	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1440000	USD
CY2012	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	1223000	USD
CY2012Q3	olp	Maximum Aggregate Sales Price Of Shares To Be Sold Under Equity Offering Program MaximumAggregateSalesPriceOfSharesToBeSoldUnderEquityOfferingProgram	50000000	USD
CY2013	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	363463	shares
CY2013	olp	Payment Of Commissions On Sale Of Shares PaymentOfCommissionsOnSaleOfShares	93000	USD
CY2013	olp	Payment Of Offering Costs On Sale Of Shares PaymentOfOfferingCostsOnSaleOfShares	63000	USD
CY2012	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	120844	shares
CY2012	olp	Payment Of Commissions On Sale Of Shares PaymentOfCommissionsOnSaleOfShares	23000	USD
CY2012	olp	Payment Of Offering Costs On Sale Of Shares PaymentOfOfferingCostsOnSaleOfShares	165000	USD
CY2013	olp	Stock Issued During Period Value New Issues Net Proceed Before Offering Costs StockIssuedDuringPeriodValueNewIssuesNetProceedBeforeOfferingCosts	9227800	USD
CY2012	olp	Stock Issued During Period Value New Issues Net Proceed Before Offering Costs StockIssuedDuringPeriodValueNewIssuesNetProceedBeforeOfferingCosts	2296000	USD
CY2011Q1	us-gaap	Stock Issued During Period Shares New Issues StockIssuedDuringPeriodSharesNewIssues	2700000	shares
CY2011Q1	olp	Stock Issued During Period Value New Issues Net Proceed Before Offering Costs StockIssuedDuringPeriodValueNewIssuesNetProceedBeforeOfferingCosts	40569000	USD
CY2011Q1	olp	Number Of Mortgages To Be Repaid From Proceeds Of Public Offering NumberOfMortgagesToBeRepaidFromProceedsOfPublicOffering	2	item
CY2011Q1	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	7700000	USD
CY2011Q1	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.079	pure
CY2012	olp	Reconciliation Of Income From Book Basis To Tax Basis Non Deductible Share Based Compensation Cost ReconciliationOfIncomeFromBookBasisToTaxBasisNonDeductibleShareBasedCompensationCost	341000	USD
CY2012	olp	Reconciliation Of Income From Book Basis To Tax Basis Depreciation And Amortization ReconciliationOfIncomeFromBookBasisToTaxBasisDepreciationAndAmortization	-208000	USD
CY2012	olp	Reconciliation Of Income From Book Basis To Tax Basis Federal Excise Tax ReconciliationOfIncomeFromBookBasisToTaxBasisFederalExciseTax	290000	USD
CY2012	olp	Reconciliation Of Income From Book Basis To Tax Basis Property Acquisition Cost Capitalized For Tax Purpose ReconciliationOfIncomeFromBookBasisToTaxBasisPropertyAcquisitionCostCapitalizedForTaxPurpose	836000	USD
CY2012	olp	Reconciliation Of Income From Book Basis To Tax Basis Other Adjustments ReconciliationOfIncomeFromBookBasisToTaxBasisOtherAdjustments	-201000	USD
CY2012	olp	Reconciliation Of Income From Book Basis To Tax Basis Profit Loss Tax Basis ReconciliationOfIncomeFromBookBasisToTaxBasisProfitLossTaxBasis	32117000	USD
CY2012	olp	Cash Dividends Paid Reconciliation CashDividendsPaidReconciliation	24252000	USD
CY2012	olp	Dividend Reinvestment Plan Common Stock Discount On Shares DividendReinvestmentPlanCommonStockDiscountOnShares	256000	USD
CY2012	olp	Dividends Before Adjustments For Previous And Current Year DividendsBeforeAdjustmentsForPreviousAndCurrentYear	24508000	USD
CY2012	olp	Dividends Designated From Following Year DividendsDesignatedFromFollowingYear	7659000	USD
CY2012	olp	Dividend Paid Deduction From Taxable Income DividendPaidDeductionFromTaxableIncome	32167000	USD
CY2013Q4	us-gaap	Below Market Lease Accumulated Amortization BelowMarketLeaseAccumulatedAmortization	3099000	USD
CY2013Q4	us-gaap	Real Estate Heldforsale RealEstateHeldforsale	5177000	USD
CY2012Q4	us-gaap	Below Market Lease Accumulated Amortization BelowMarketLeaseAccumulatedAmortization	2505000	USD
CY2011	olp	Net Income Loss From Continuing Operations Available To Common Stockholders NetIncomeLossFromContinuingOperationsAvailableToCommonStockholders	10632000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	13264000	USD
CY2011	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	13264000	USD
CY2013Q4	olp	Unamortized Intangible Lease Assets UnamortizedIntangibleLeaseAssets	26035000	USD
CY2013	us-gaap	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTax	961000	USD
CY2011	olp	Weighted Average Number Of Shares Outstanding Including Unvested Restricted Stock Shares Basic WeightedAverageNumberOfSharesOutstandingIncludingUnvestedRestrictedStockSharesBasic	13801000	shares
CY2011	olp	Weighted Average Number Of Diluted Shares Including Unvested Restricted Stock Shares Outstanding WeightedAverageNumberOfDilutedSharesIncludingUnvestedRestrictedStockSharesOutstanding	13851000	shares
CY2011	us-gaap	Income Loss From Continuing Operations IncomeLossFromContinuingOperations	11092000	USD
CY2011	us-gaap	Income Loss From Discontinued Operations Net Of Tax Attributable To Reporting Entity IncomeLossFromDiscontinuedOperationsNetOfTaxAttributableToReportingEntity	2632000	USD
CY2013	olp	Costs Of Acquiring Real Estate CostsOfAcquiringRealEstate	921000	USD
CY2013Q4	olp	Escrow Deposits And Other Assets And Receivables EscrowDepositsAndOtherAssetsAndReceivables	5690000	USD
CY2013Q4	olp	Investment In Related Party InvestmentInRelatedParty	262000	USD
CY2013Q4	us-gaap	Deferred Finance Costs Net DeferredFinanceCostsNet	3267000	USD
CY2013Q4	us-gaap	Dividends Payable Current And Noncurrent DividendsPayableCurrentAndNoncurrent	5806000	USD
CY2013Q4	us-gaap	Accrued Liabilities Current And Noncurrent AccruedLiabilitiesCurrentAndNoncurrent	7790000	USD
CY2013Q4	us-gaap	Off Market Lease Unfavorable OffMarketLeaseUnfavorable	6917000	USD
CY2013Q4	us-gaap	Common Stock Value CommonStockValue	15221000	USD
CY2013Q4	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	210324000	USD
CY2013Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-490000	USD
CY2013Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	23877000	USD
CY2013Q4	us-gaap	Minority Interest MinorityInterest	1158000	USD
CY2013	us-gaap	Real Estate Revenue Net RealEstateRevenueNet	50979000	USD
CY2013	us-gaap	General And Administrative Expense GeneralAndAdministrativeExpense	7801000	USD
CY2013	olp	Federal Excise And State Tax Paid And Or Accrued FederalExciseAndStateTaxPaidAndOrAccrued	255000	USD
CY2013	us-gaap	Direct Costs Of Leased And Rented Property Or Equipment DirectCostsOfLeasedAndRentedPropertyOrEquipment	3213000	USD
CY2013	olp	Leasehold Rent LeaseholdRent	308000	USD
CY2013	olp	Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax Cash Flow Impact DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTaxCashFlowImpact	6000	USD
CY2013	us-gaap	Straight Line Rent StraightLineRent	1114000	USD
CY2013	us-gaap	Other Nonoperating Income OtherNonoperatingIncome	97000	USD
CY2013	us-gaap	Interest Expense InterestExpense	13716000	USD
CY2013	us-gaap	Amortization Of Financing Costs And Discounts AmortizationOfFinancingCostsAndDiscounts	890000	USD
CY2013	olp	Other Comprehensive Income Loss Derivatives Qualifying As Hedges Net Of Tax The Company Share From Joint Venture OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesNetOfTaxTheCompanyShareFromJointVenture	76000	USD
CY2013	us-gaap	Comprehensive Income Net Of Tax Attributable To Noncontrolling Interest ComprehensiveIncomeNetOfTaxAttributableToNoncontrollingInterest	49000	USD
CY2013	us-gaap	Share Based Compensation ShareBasedCompensation	1440000	USD
CY2013	us-gaap	Equity Method Investment Dividends Or Distributions EquityMethodInvestmentDividendsOrDistributions	1103000	USD
CY2013	us-gaap	Depreciation Depletion And Amortization DepreciationDepletionAndAmortization	12043000	USD
CY2013	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	891000	USD
CY2013	us-gaap	Increase Decrease In Operating Assets IncreaseDecreaseInOperatingAssets	1653000	USD
CY2013	us-gaap	Increase Decrease In Operating Liabilities IncreaseDecreaseInOperatingLiabilities	1763000	USD
CY2013	us-gaap	Payments To Acquire And Develop Real Estate PaymentsToAcquireAndDevelopRealEstate	107579000	USD
CY2013	us-gaap	Payments To Develop Real Estate Assets PaymentsToDevelopRealEstateAssets	2867000	USD
CY2013	us-gaap	Payments For Lease Commissions PaymentsForLeaseCommissions	200000	USD
CY2013	olp	Payments Of Amortization Of Mortgages Payable PaymentsOfAmortizationOfMortgagesPayable	6808000	USD
CY2013	us-gaap	Repayments Of Secured Debt RepaymentsOfSecuredDebt	4708000	USD
CY2013	us-gaap	Proceeds From Issuance Of Secured Debt ProceedsFromIssuanceOfSecuredDebt	63590000	USD
CY2013	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	9165000	USD
CY2013	us-gaap	Proceeds From Long Term Lines Of Credit ProceedsFromLongTermLinesOfCredit	32500000	USD
CY2013	us-gaap	Repayments Of Long Term Lines Of Credit RepaymentsOfLongTermLinesOfCredit	9250000	USD
CY2013	us-gaap	Proceeds From Issuance Of Common Stock Dividend Reinvestment Plan ProceedsFromIssuanceOfCommonStockDividendReinvestmentPlan	4235000	USD
CY2013	us-gaap	Payments Of Financing Costs PaymentsOfFinancingCosts	656000	USD
CY2013	us-gaap	Proceeds From Minority Shareholders ProceedsFromMinorityShareholders	480000	USD
CY2013	us-gaap	Payments To Minority Shareholders PaymentsToMinorityShareholders	298000	USD
CY2013	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	21445000	USD
CY2013	us-gaap	Interest Paid InterestPaid	13744000	USD
CY2013	us-gaap	Income Taxes Paid IncomeTaxesPaid	78000	USD
CY2013	olp	Noncash Allocation Of Intangible Lease Assets NoncashAllocationOfIntangibleLeaseAssets	11624000	USD
CY2013	olp	Noncash Allocation Of Intangible Lease Liability NoncashAllocationOfIntangibleLeaseLiability	-2210000	USD
CY2013Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Land RealEstateAndAccumulatedDepreciationInitialCostOfLand	154954000	USD
CY2013Q4	us-gaap	Real Estate And Accumulated Depreciation Amount Of Encumbrances RealEstateAndAccumulatedDepreciationAmountOfEncumbrances	278045000	USD
CY2013Q4	us-gaap	Real Estate And Accumulated Depreciation Costs Capitalized Subsequent To Acquisition Improvements RealEstateAndAccumulatedDepreciationCostsCapitalizedSubsequentToAcquisitionImprovements	18130000	USD
CY2013Q4	us-gaap	Real Estate And Accumulated Depreciation Initial Cost Of Buildings And Improvements RealEstateAndAccumulatedDepreciationInitialCostOfBuildingsAndImprovements	401400000	USD
CY2013	us-gaap	Other Comprehensive Income Derivatives Qualifying As Hedges Net Of Tax Portion Attributable To Noncontrolling Interest OtherComprehensiveIncomeDerivativesQualifyingAsHedgesNetOfTaxPortionAttributableToNoncontrollingInterest	4000	USD
CY2013Q4	us-gaap	Real Estate Investment Property Accumulated Depreciation RealEstateInvestmentPropertyAccumulatedDepreciation	71171000	USD
CY2013Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Buildings And Improvements RealEstateAndAccumulatedDepreciationCarryingAmountOfBuildingsAndImprovements	419482000	USD
CY2013Q4	us-gaap	Real Estate And Accumulated Depreciation Carrying Amount Of Land RealEstateAndAccumulatedDepreciationCarryingAmountOfLand	154942000	USD
CY2012	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	2000	USD
CY2011	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	26000	USD
CY2013	us-gaap	Amortization Of Above And Below Market Leases AmortizationOfAboveAndBelowMarketLeases	-160000	USD
CY2014Q1	olp	Discontinued Operations Number Of Properties Sold DiscontinuedOperationsNumberOfPropertiesSold	2	property
	olp	Discontinued Operations Number Of Properties Sold DiscontinuedOperationsNumberOfPropertiesSold	6	property
CY2013Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Land BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand	16951000	USD
CY2012Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Land BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLand	14501000	USD
CY2013Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Buildings BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings	75915000	USD
CY2012Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Buildings BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildings	23472000	USD
CY2013Q4	olp	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Buildings Improvements BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildingsImprovements	4312000	USD
CY2012Q4	olp	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Buildings Improvements BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedBuildingsImprovements	889000	USD
CY2013Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet	107579000	USD
CY2012Q4	us-gaap	Business Combination Recognized Identifiable Assets Acquired And Liabilities Assumed Net BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNet	44915000	USD
CY2013	us-gaap	Impairment Of Long Lived Assets To Be Disposed Of ImpairmentOfLongLivedAssetsToBeDisposedOf	62000	USD

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$OLP
ONE LIBERTY PROPERTIES INC Stock $olp

2013 Q4 Form 10-K Financial Statement

#000104746914002526 Filed on March 17, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$OLP ONE LIBERTY PROPERTIES INC Stock $olp

2013 Q4 Form 10-K Financial Statement

#000104746914002526 Filed on March 17, 2014

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$OLP
ONE LIBERTY PROPERTIES INC Stock $olp