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Cash and Cash Equivalents (Tables)

12 Months Ended

Dec. 31, 2014

Cash and Cash Equivalents

Schedule of summary of cash and cash equivalents

		December 31,
		2013				2014
Cash		$	4,670			$	5,870
Investments with original maturity of less than three months at the time of purchase			26,476				18,319
Total cash and cash equivalents		$	31,146			$	24,189

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Tabular disclosure of the components of cash and cash equivalents.

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