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Significant Accounting Policies (Details) (USD $) | 12 Months Ended | 3 Months Ended | 12 Months Ended
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Dec. 31, 2013 Segment | Dec. 31, 2012 | Dec. 31, 2013 Maximum [Member] | Sep. 30, 2013 Havana Parker [Member] | Dec. 31, 2013 Morena Office Center [Member] | Dec. 31, 2012 Waterman Plaza [Member] | Dec. 31, 2012 Other real estate owned [Member] | Dec. 31, 2013 Real Estate Held for Sale [Member] Property | Dec. 31, 2013 Building and Building Improvements [Member] Minimum [Member] | Dec. 31, 2013 Building and Building Improvements [Member] Maximum [Member] | Dec. 31, 2013 Assets Leased to Others [Member] Minimum [Member] | Dec. 31, 2013 Assets Leased to Others [Member] Maximum [Member] | Dec. 31, 2013 Furniture and Fixtures [Member] Minimum [Member] | Dec. 31, 2013 Furniture and Fixtures [Member] Maximum [Member]
Real Estate Asset Acquisitions [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of above and below market rents | $ 169,000 | $ 446,000 |  |  |  |  |  |  |  |  |  |  |  |
Remaining term of in-place leases (in years) |  |  | 10 years |  |  |  |  |  |  |  |  |  |  |
Amortization expense related to in-place leases, unamortized lease origination costs and tenant relationships | 455,000 | 604,000 |  |  |  |  |  |  |  |  |  |  |  |
Capitalization Policy [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum threshold for capitalization | 5,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Sales of Real Estate Assets [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Model Home properties considered as held for sale |  |  |  |  |  |  |  | 8 |  |  |  |  |  |
Value of properties considered as held for sale |  |  |  |  |  |  |  | 3,100,000 |  |  |  |  |  |
Mortgage notes payable related to properties considered as held for sale |  |  |  |  |  |  |  | 1,300,000 |  |  |  |  |  |
Asset impairment |  |  |  | 1,500,000 | 500,000 | 300,000 | 1,300,000 | 0 |  |  |  |  |  |
Depreciation and Amortization of Buildings and Improvements [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Estimated useful life |  |  |  |  |  |  |  |  | 30 years | 55 years | 1 year | 10 years | 4 years | 5 years
Depreciation expense | 4,500,000 | 4,000,000 |  |  |  |  |  |  |  |  |  |  |  |
Intangible Assets [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Impairment of goodwill | 0 | 0 |  |  |  |  |  |  |  |  |  |  |  |
Impairment of indefinite lived assets | 0 | 0 |  |  |  |  |  |  |  |  |  |  |  |
Impairment of definite lived assets | 0 | 0 |  |  |  |  |  |  |  |  |  |  |  |
Impairment [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Asset impairment |  |  |  | 1,500,000 | 500,000 | 300,000 | 1,300,000 | 0 |  |  |  |  |  |
Provision for Mortgage Loan Losses [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Provision for loan losses | 0 | 0 |  |  |  |  |  |  |  |  |  |  |  |
Cash and Cash Equivalents [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deposits in financial institutions above federally insurable limits | 4,900,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Tenant Receivables [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allowance for uncollectible accounts | 115,000 | 69,000 |  |  |  |  |  |  |  |  |  |  |  |
Deferred Leasing Costs [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net deferred leasing costs | 1,465,000 | 1,059,000 |  |  |  |  |  |  |  |  |  |  |  |
Amortization of deferred leasing costs | 321,000 | 204,000 |  |  |  |  |  |  |  |  |  |  |  |
Deferred Financing Costs [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred financing costs | 1,184,000 | 1,065,000 |  |  |  |  |  |  |  |  |  |  |  |
Amortization of deferred financing costs | 297,000 | 192,000 |  |  |  |  |  |  |  |  |  |  |  |
Revenue Recognition [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred rent receivable | 1,384,000 | 1,054,000 |  |  |  |  |  |  |  |  |  |  |  |
Provision for uncollectible accounts | $ 0 | $ 0 |  |  |  |  |  |  |  |  |  |  |  |
Number of days for interest accrual | 90 days |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted Average Number of Shares Outstanding Reconciliation [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average shares used for Basic EPS (in shares) | 16,170,865 | 15,479,474 |  |  |  |  |  |  |  |  |  |  |  |
Adjusted weighted average shares for diluted EPS (in shares) | 16,170,865 | 15,479,474 |  |  |  |  |  |  |  |  |  |  |  |
Anti-dilutive shares excluded from conputation of diluted earnings per share | 1,325,339 | 1,303,649 |  |  |  |  |  |  |  |  |  |  |  |
Segments [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of reportable segments | 4 |  |  |  |  |  |  |  |  |  |  |  |  |

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