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Investments (Details) (USD $)	Jun. 30, 2012
Available-for-sale securities:
Cost	$ 9,254,327
Gross Unrealized Gains	1,553
Gross Unrealized Losses	(2,431)
Fair Market Value	9,253,449
Short-term [Member]
Available-for-sale securities:
Fair Market Value	8,851,568
Long-term [Member]
Available-for-sale securities:
Fair Market Value	401,881
Corporate debt securities [Member] | Short-term [Member]
Available-for-sale securities:
Cost	8,852,595
Gross Unrealized Gains	1,404
Gross Unrealized Losses	(2,431)
Fair Market Value	8,851,568
Corporate debt securities [Member] | Long-term [Member]
Available-for-sale securities:
Cost	401,732
Gross Unrealized Gains	149
Gross Unrealized Losses	0
Fair Market Value	$ 401,881

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

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-Name Statement of Financial Accounting Standard (FAS)

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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Reference 1: http://www.xbrl.org/2003/role/presentationRef

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