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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
shares in Thousands, $ in Thousands
Sep. 30, 2015
Dec. 31, 2014
CONSOLIDATED BALANCE SHEETS    
Unbilled rent receivable related to property held-for-sale in 2014   $ 120
Preferred stock, par value (in dollars per share) $ 1 $ 1
Preferred stock, shares authorized 12,500 12,500
Preferred stock, shares issued 0 0
Common stock, par value (in dollars per share) $ 1 $ 1
Common stock, shares authorized 25,000 25,000
Common stock, shares issued 16,073 15,728
Common stock, shares outstanding 16,073 15,728