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Condensed Consolidated Statements of Comprehensive Loss (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Net loss	$ (638)	$ (1,468)
Other comprehensive income (loss):
Reclassification of unrealized gain upon sale of available-for-sale securities	0	(255)
Unrealized loss on available-for-sale investments	0	(1)
Tax effect of unrealized gain on available-for-sale investments	0	26
Total comprehensive loss	$ (638)	$ (1,698)

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