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16. Segmented information (Tables)
3 Months Ended
Mar. 31, 2013
Segment Reporting [Abstract]  
Segment Reporting Information
  Gastrointestinal Clinical Services  Addiction and Rehabilitation Treatments  Other Segments  Total

Revenues from external customers

  $521,165   $923,102   $—     $1,444,267 
Depreciation of fixed assets   17,243    27,031    —      44,274 
Interest and fees expense   4,052    34,674    —      38,726 
Segment loss   (40,444)   (312,241)   (23,447)   (376,132)
Segment assets   560,620    520,245    —      1,080,865