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Debt (Details Textual) - USD ($) | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Aug. 31, 2016 | Jul. 31, 2016 | May 28, 2015 | Mar. 31, 2016 | Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term Line of Credit |  |  |  |  | $ 14,000,000 | $ 18,000,000 |
Long-term Debt, Total |  |  |  |  | 404,051,000 |  |
Secured Debt |  |  |  |  | 69,067,000 | 100,391,000 |
Unsecured Debt |  |  |  |  | 158,679,000 | 99,390,000 |
Repayments Of Secured Debt |  |  |  |  | 31,578,000 | 5,178,000 | $ 12,767,000
Unamortized Debt Issuance Expense |  |  |  |  | 3,100,000 | $ 2,600,000 |
Private Placement [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Unsecured Debt |  | $ 60,000,000 | $ 100,000,000 |  |  |  |
Debt [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term Debt, Total |  |  |  |  | 404,000,000 |  |
Secured Debt |  |  |  |  | 70,000,000 |  |
Unsecured Debt |  |  |  |  | 160,000,000 |  |
Revolving Credit and Term Loan Facility [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  | 350,000,000 |  |
Line of Credit facility, Maximum Limit of Borrowing Capacity |  |  |  |  | $ 500,000,000 |  |
Mortgage Note Payable [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term Debt, Weighted Average Interest Rate |  |  |  |  | 4.79% | 4.17% |
Debt Instrument, Maturity Date | May 31, 2017 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  | 6.56% |  |  |
Real Estate Investments, Net |  |  |  |  | $ 90,300,000 |  |
Debt Instrument, Description of Variable Rate Basis | LIBOR plus 170 basis points |  |  |  |  |  |
Secured Debt |  |  |  |  | 70,000,000 |  |
Repayments Of Secured Debt | $ 20,300,000 |  |  | $ 8,600,000 |  |  |
Unsecured Debt [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Long-term Debt, Weighted Average Interest Rate |  |  | 4.21% |  |  |  |
Debt Instrument, Maturity Date |  | Jul. 31, 2028 |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  | 4.42% |  |  |  |  |
Unsecured Debt |  |  |  |  | 158,679,000 | $ 99,390,000 |
Unamortized Debt Issuance Expense |  |  |  |  | 1,365,000 | 610,000 |
Unsecured Debt [Member] | Weighted Average [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Term |  |  | 11 years |  |  |  |
Unsecured Debt [Member] | 2024 Term Loan Facility One [Member) |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | 65,000,000 | 65,000,000 |
Unsecured Debt [Member] | 2024 Term Loan Facility Two [Membe] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | 35,000,000 |  |
Unsecured Debt [Member] | 2024 Term Loan Facilitilies [Membe] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  | $ 35,000,000 | 35,000,000 |
Debt Instrument, Maturity Date |  |  |  |  | Jan. 31, 2024 |  |
Debt Instrument, Description of Variable Rate Basis |  |  |  |  | Borrowings under the unsecured 2024 Term Loan Facilities bear interest at a variable LIBOR plus 1.65% to 2.35%, depending on the Company's leverage ratio. |  |
Unsecured Debt One [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  | $ 50,000,000 |  |  |  |
Debt Instrument, Maturity Date |  |  | May 31, 2025 |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 4.16% |  |  |  |
Unsecured Debt Two [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  | $ 50,000,000 |  |  |  |
Debt Instrument, Maturity Date |  |  | May 31, 2027 |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  | 4.26% |  |  |  |
Unsecured Term Loan Facility One [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  | $ 65,000,000 |  |
Unsecured Term Loan Facility Two [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  | 35,000,000 |  |
Revolving Credit Facility [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  | 250,000,000 |  |
Long-term Line of Credit |  |  |  |  | $ 14,000,000 | $ 18,000,000 |
Long-term Debt, Weighted Average Interest Rate |  |  |  |  | 1.90% | 1.70% |
Debt Instrument, Maturity Date |  | Jul. 31, 2023 |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 3.05% |  |
Debt Instrument, Description of Variable Rate Basis |  | LIBOR plus 165 to 225 basis points, depending on the Companys leverage. The Company entered into interest rate swap to fix LIBOR at 1.40% until maturity. |  |  | Borrowings under the revolving credit facility bear interest at LIBOR plus 1.30% to 1.95%, depending on the Company’s leverage ratio. |  |
Line of Credit Facility, Remaining Borrowing Capacity |  |  |  |  | $ 236,000,000 |  |
Unsecured Debt |  | $ 40,000,000 |  |  | $ 40,000,000 |  |
Revolving Credit Facility [Member] | Minimum [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Maturity Date |  |  |  |  | Jan. 31, 2021 |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage |  |  |  |  | 0.15% |  |
Revolving Credit Facility [Member] | Maximum [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Maturity Date |  |  |  |  | Jan. 31, 2022 |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage |  |  |  |  | 0.25% |  |
Revolving Credit Facility [Member] | 2019 Term Loan [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Maturity Date | May 31, 2019 |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 3.62% |  |
Debt Instrument, Description of Variable Rate Basis | LIBOR plus 170 basis points. In order to fix LIBOR on the 2019 Term Loan at 1.92% until maturity |  |  |  |  |  |
Unsecured Debt | $ 20,300,000 |  |  |  | $ 20,000,000 |  |
Revolving Credit Facility [Member] | Unsecured Term Loan Facility [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Unsecured Debt |  |  |  |  | 40,000,000 |  |
Revolving Credit Facility [Member] | Unsecured Amortizing Term loan Facility [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Unsecured Debt |  |  |  |  | $ 20,000,000 |  |
Unsecured Term Loan [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Maturity Date |  |  |  |  | Jan. 31, 2024 |  |
Senior Unsecured Notes [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Unsecured Debt |  |  |  |  | $ 160,000,000 |  |
April 4 2018 [Member] | Mortgages [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Description of Variable Rate Basis |  |  |  |  | interest only at LIBOR plus 160 basis points, swapped to a fixed rate of 2.49% |  |
January 1 2023 [Member] | Mortgages [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 3.60% |  |
January 2020 [Member] | Mortgages [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Periodic Payment, Principal |  |  |  |  | $ 153,838 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 6.90% |  |
July 2026 [Member] | Mortgages [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Periodic Payment, Principal |  |  |  |  | $ 91,675 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 6.27% |  |
February 2020 [Member] | Mortgages [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Periodic Payment, Principal |  |  |  |  | $ 23,004 |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid |  |  |  |  | $ 2,781,819 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 6.24% |  |
September 2023 [Member] | Mortgages [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Periodic Payment, Principal |  |  |  |  | $ 35,673 |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid |  |  |  |  | $ 4,034,627 |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  | 5.01% |  |
March 11 2016 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Interest Rate, Stated Percentage |  |  |  |  |  | 6.56% |
March 11 2016 [Member] | Mortgage Note Payable [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid |  |  |  |  |  | $ 8,580,000 |
Secured Debt |  |  |  |  |  | 8,580,000 |
August 19 2016 [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Periodic Payment, Principal |  |  |  |  |  | 56,380 |
August 19 2016 [Member] | Mortgages [Member] |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |
Debt Instrument, Periodic Payment Terms, Balloon Payment to be Paid |  |  |  |  |  | $ 20,283,000 |
Debt Instrument, Description of Variable Rate Basis |  |  |  |  |  | interest at 170 basis points over LIBOR, swapped to a fixed rate of 3.62% |

X
- Definition The maximum amount of borrowing capacity that can be offered by the lender in a line of credit agreement. + References No definition available. + Details
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- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of the required periodic payments applied to principal. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of payment greater than the preceding installment payments to be paid at final maturity date of debt. + References No definition available. + Details
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- Definition Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Weighted average interest rate of long-term debt outstanding. + References No definition available. + Details
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- Definition Amount of real estate investments, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; (7) other real estate investments; (8) real estate joint ventures; and (9) unconsolidated real estate and other joint ventures not separately presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.1(d)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66902209&loc=d3e3291-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Financing Activities -URI http://asc.fasb.org/extlink&oid=6513228 + Details
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- Definition Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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