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Consolidated Statements of Operations and Comprehensive Loss - USD ($)
shares in Thousands, $ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Total revenues (rental income) $ 441 $ 440
Costs and expenses:    
General and administrative 12,165 11,402
Depreciation 265 258
Total costs and expenses 12,430 11,660
Operating loss (11,989) (11,220)
Interest expense (17,072) (15,270)
Interest income 226 223
Debt conversion expense (197)
Loss before income taxes (29,032) (26,267)
Income tax expense (6) (6)
Loss from equity-method investments (490)
Net loss and comprehensive loss $ (29,528) $ (26,273)
Basic and diluted net loss per share (in dollars per share) $ (1.11) $ (1.09)
Weighted-average shares outstanding (in shares) 26,549 23,998