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The Company
 6 Months Ended
Jun. 30, 2014
Accounting Policies [Abstract]  
The Company
1. The Company

We develop, manufacture, market and sell oral fluid diagnostic products and specimen collection devices using our proprietary oral fluid technologies, as well as other diagnostic products, including immunoassays and other in vitro diagnostic tests that are used on other specimen types. Our diagnostic products include tests that are performed on a rapid basis at the point-of-care and tests that are processed in a laboratory. We sell the first and only rapid point-of-care HIV test approved for use in the domestic consumer retail or over-the-counter (“OTC”) market. We also manufacture and sell oral fluid collection devices used to collect, stabilize and store samples of genetic material for molecular testing in the consumer genetic, clinical genetic testing, academic research, pharmacogenomics, personalized medicine, and animal genetics markets. Lastly, we manufacture and sell medical devices used for the removal of benign skin lesions by cryosurgery, or freezing. Our products are sold in the United States and internationally to various clinical laboratories, hospitals, clinics, community-based organizations, public health organizations, research and academic institutions, distributors, government agencies, physicians’ offices, and commercial and industrial entities. Our OTC HIV and cryosurgical products are sold to retail pharmacies and mass merchandisers, and our OTC HIV product is also sold to consumers over the internet.