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Discontinued Operations (Tables)
3 Months Ended
Jun. 30, 2013
Discontinued Operations and Disposal Groups [Abstract]  
Discontinued Operations
  Three months ended June 30,   Six months ended June 30,
  2013 2012   2013 2012
Revenue $1,000 $172,021   $ 1,488 $323,638
Expenses 2,227 82,678   1,372 171,044
Net operating income (loss) from discontinued operations $(1,227) $89,343   $(116) $152,594