Commitments and Contingencies	6 Months Ended
Jun. 30, 2013
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies Disclosure [Text Block]	11. Commitments and Contingencies The Company and/or one or more of its subsidiaries is party to various litigation matters that are considered routine litigation incidental to its business, none of which are considered material. The Company is obligated under certain tenant leases, to construct the underlying leased property or fund tenant expansions. As of June 30, 2013, the Company had four outstanding commitments: (1) The construction of a 120,000 square foot cold storage facility located in Hialeah Gardens, Florida, of which the unfunded amounts were estimated to be $23,158; (2) The contribution of $1,500 towards tenant improvements on a warehouse/industrial property in Garland, Texas; (3) The expansion of a property located in Olive Branch, Mississippi whereby the tenant has a one-time option to expand the building by 250,000; and (4) The expansion of a property located in Logan Township, New Jersey whereby the tenant has a one-time option to expand the building by 25,000 square feet. The tenants have not noticed the Company for the building expansion options and as such, no amounts are due and no unfunded amounts have been estimated. The Company’s corporate offices at 420 Lexington Avenue, New York, New York are subject to an operating lease agreement with SLG Graybar Sublease LLC, an affiliate of SL Green, effective May 1, 2005. The lease is for approximately 7,300 square feet and carries a term of 10 years with rents of approximately $249 per annum for year one rising to $315 per annum in year ten. In May and June 2009, the Company amended its lease with SLG Graybar Sublease LLC to increase the leased premises by approximately 2,260 square feet. The additional premises are leased on a co-terminus basis with the remainder of the Company's leased premises and carries rents of approximately $103 per annum during the initial lease year and $123 per annum during the final lease year. On June 25, 2012, the lease was further amended to reduce the leased premises by approximately 600 square feet and to reduce rents by approximately $29 per annum during the initial year and $38 per annum during the final lease year. All other terms of the lease remain unchanged, except the Company now has the right to cancel the lease with 90 days notice. In April 2013, the Company gave notice that it was cancelling the lease for the corporate offices at 420 Lexington Avenue effective in September 2013 concurrently with the commencement of the lease for the new corporate offices at 521 Fifth Avenue. In June 2013, the Company signed a lease agreement with 521 Fifth Fee Owner LLC, an affiliate of SL Green, for new corporate office space located at 521 Fifth Avenue, New York, New York. The lease is expected to commence in September 2013, following the completion of certain improvements to the space. The lease is for approximately 6,580 square feet and carries a term of 10 years with rents of approximately $373 per annum for year one rising to $463 per annum in year ten. The Company's regional management office located at 610 Old York Road, Jenkintown, Pennsylvania, is subject to an operating lease with an affiliate of KBS Real Estate Investment Trust, Inc., or KBS. The lease is for approximately 17,000 square feet, and expires on May 31, 2014, with rents of approximately $322 per annum. The Company's regional management office located at 800 Market Street, St. Louis, Missouri is subject to an operating lease with St. Louis BOA Plaza, LLC. The lease is for approximately 2,000 square feet, expires on September 30, 2013, and is cancelable with 90 days' notice. The lease is subject to rents of $32 per annum.

11. Commitments and Contingencies

The Company and/or one or more of its subsidiaries is party to various litigation matters that are considered routine litigation incidental to its business, none of which are considered material.

The Company is obligated under certain tenant leases, to construct the underlying leased property or fund tenant expansions. As of June 30, 2013, the Company had four outstanding commitments: (1) The construction of a 120,000 square foot cold storage facility located in Hialeah Gardens, Florida, of which the unfunded amounts were estimated to be $23,158; (2) The contribution of $1,500 towards tenant improvements on a warehouse/industrial property in Garland, Texas; (3) The expansion of a property located in Olive Branch, Mississippi whereby the tenant has a one-time option to expand the building by 250,000; and (4) The expansion of a property located in Logan Township, New Jersey whereby the tenant has a one-time option to expand the building by 25,000 square feet. The tenants have not noticed the Company for the building expansion options and as such, no amounts are due and no unfunded amounts have been estimated.

The Company’s corporate offices at 420 Lexington Avenue, New York, New York are subject to an operating lease agreement with SLG Graybar Sublease LLC, an affiliate of SL Green, effective May 1, 2005. The lease is for approximately 7,300 square feet and carries a term of 10 years with rents of approximately $249 per annum for year one rising to $315 per annum in year ten. In May and June 2009, the Company amended its lease with SLG Graybar Sublease LLC to increase the leased premises by approximately 2,260 square feet. The additional premises are leased on a co-terminus basis with the remainder of the Company's leased premises and carries rents of approximately $103 per annum during the initial lease year and $123 per annum during the final lease year. On June 25, 2012, the lease was further amended to reduce the leased premises by approximately 600 square feet and to reduce rents by approximately $29 per annum during the initial year and $38 per annum during the final lease year. All other terms of the lease remain unchanged, except the Company now has the right to cancel the lease with 90 days notice. In April 2013, the Company gave notice that it was cancelling the lease for the corporate offices at 420 Lexington Avenue effective in September 2013 concurrently with the commencement of the lease for the new corporate offices at 521 Fifth Avenue.

In June 2013, the Company signed a lease agreement with 521 Fifth Fee Owner LLC, an affiliate of SL Green, for new corporate office space located at 521 Fifth Avenue, New York, New York. The lease is expected to commence in September 2013, following the completion of certain improvements to the space. The lease is for approximately 6,580 square feet and carries a term of 10 years with rents of approximately $373 per annum for year one rising to $463 per annum in year ten.

The Company's regional management office located at 610 Old York Road, Jenkintown, Pennsylvania, is subject to an operating lease with an affiliate of KBS Real Estate Investment Trust, Inc., or KBS. The lease is for approximately 17,000 square feet, and expires on May 31, 2014, with rents of approximately $322 per annum. The Company's regional management office located at 800 Market Street, St. Louis, Missouri is subject to an operating lease with St. Louis BOA Plaza, LLC. The lease is for approximately 2,000 square feet, expires on September 30, 2013, and is cancelable with 90 days' notice. The lease is subject to rents of $32 per annum.