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           6. Courseware (Tables) 
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        12 Months Ended | ||||||||||||||||||||||||||||||||||||
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           Dec. 31, 2012 
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| Courseware Tables | |||||||||||||||||||||||||||||||||||||
| Intangible Assets | 
 Courseware consisted of the following at December 31, 2012 and 2011: 
 
 
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| Capitalized cost | 
 Courseware consisted of the following at December 31, 2012 and 2011: 
 
 
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| X | ||||||||||
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- Details 
          
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| X | ||||||||||
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- Definition 
          Tabular disclosure of the amounts paid in advance for capitalized costs that will be expensed with the passage of time or the occurrence of a triggering event, and will be charged against earnings within one year or the normal operating cycle, if longer; the aggregate carrying amount of current assets, not separately presented elsewhere in the balance sheet; and other deferred costs. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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| X | ||||||||||
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- Definition 
          Tabular disclosure of the capitalized costs of unproved properties and major development projects that are excluded from capitalized costs being amortized. This includes the total costs excluded and, at a minimum, these categories of costs: acquisition costs, exploration costs, development costs in the case of significant development projects, and capitalized interest. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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