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Short-Term Investments	3 Months Ended
Short-Term Investments	Mar. 31, 2015
Short-Term Investments
Short-Term Investments	2.Short-Term Investments The Company’s $1,861,000 of short-term investments at March 31, 2015 is comprised of fully insured certificates of deposit with original maturities ranging from six to twelve months and interest rates ranging from 0.3% to 0.5%.