ISSUANCES OF COMMON STOCK	12 Months Ended
Dec. 31, 2012
ISSUANCES OF COMMON STOCK
ISSUANCES OF COMMON STOCK	(5) ISSUANCES OF COMMON STOCK On April 19, 2010, the Company completed an underwritten public offering of 4.2 million shares of common stock at a price of $4.50 per share to the public. The Company received approximately $17.6 million of net proceeds from the offering, after deducting $1.3 million for the underwriting discount and other stock issuance costs paid by the Company. The Company expects to use the net proceeds from the offering for general corporate and working capital purposes, including the funding of strategic initiatives that the Company may undertake from time to time, for product development and the furtherance of the Company's efforts to obtain FDA clearance in its sDNA colorectal cancer screening product. On November 10, 2010, the Company completed an underwritten public offering of 11.5 million shares of common stock at a price of $6.00 per share to the public. The Company received approximately $64.7 million of net proceeds from the offering, after deducting $4.3 million for the underwriting discount and other stock issuance costs paid by the Company. On December 6, 2011, the Company completed an underwritten public offering of 3.6 million shares of common stock at a price of $8.00 per share to the public. The Company received approximately $27.2 million of net proceeds from the offering, after deducting $1.5 million for the underwriting discount and other stock issuance costs paid by the Company. On August 13, 2012, the Company completed an underwritten public offering of 6.3 million shares of common stock at a price of $9.75 per share to the public. The Company received approximately $57.8 million of net proceeds from the offering, after deducting $3.9 million for the underwriting discount and other stock issuance costs paid by the Company.

(5) ISSUANCES OF COMMON STOCK

On April 19, 2010, the Company completed an underwritten public offering of 4.2 million shares of common stock at a price of $4.50 per share to the public. The Company received approximately $17.6 million of net proceeds from the offering, after deducting $1.3 million for the underwriting discount and other stock issuance costs paid by the Company. The Company expects to use the net proceeds from the offering for general corporate and working capital purposes, including the funding of strategic initiatives that the Company may undertake from time to time, for product development and the furtherance of the Company's efforts to obtain FDA clearance in its sDNA colorectal cancer screening product.

On November 10, 2010, the Company completed an underwritten public offering of 11.5 million shares of common stock at a price of $6.00 per share to the public. The Company received approximately $64.7 million of net proceeds from the offering, after deducting $4.3 million for the underwriting discount and other stock issuance costs paid by the Company.

On December 6, 2011, the Company completed an underwritten public offering of 3.6 million shares of common stock at a price of $8.00 per share to the public. The Company received approximately $27.2 million of net proceeds from the offering, after deducting $1.5 million for the underwriting discount and other stock issuance costs paid by the Company.

On August 13, 2012, the Company completed an underwritten public offering of 6.3 million shares of common stock at a price of $9.75 per share to the public. The Company received approximately $57.8 million of net proceeds from the offering, after deducting $3.9 million for the underwriting discount and other stock issuance costs paid by the Company.