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Short-term and long-term investments (Tables)

12 Months Ended

Dec. 31, 2014

Investments, Debt and Equity Securities [Abstract]

Composition of Short-Term and Long -Term Investments

The composition of short-term and long-term investments is as follows:

		December 31,				December 31,
		2014				2013
Short-term investments
Time Deposits		$	58,475,057			$	66,677,156
Sovereign Debt Securities			4,721,440				5,520,193
Corporate Debt Securities			81,810,731				4,395,865
Certificates of deposits			3,802,311				—
Total		$	148,809,539			$	76,593,214
Long-term investments
Sovereign Debt Securities			44,428,490				24,875,697
Corporate Debt Securities			156,832,560				20,844,040
Certificates of deposits			4,003,992				—
Total		$	205,265,042			$	45,719,737

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- Definition

A table of investments, shown as a text block.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 6

-Section 10

-Paragraph (c)

-Subparagraph (1)

+ Details

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