9. WARRANTS

12 Months Ended

Dec. 31, 2012

Derivative Instruments and Hedging Activities Disclosure [Abstract]

9. WARRANTS

We have issued warrants related to various transactions in previous years; a summary of warrant transactions follows for the year ended December 31, 2012. The aggregate intrinsic value is based on the closing price of $1.30 on December 31, 2012.

	Shares Underlying Warrants		Weighted- Average Exercise Price		Weighted- Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value (In-The-Money)
Outstanding and exercisable at December 31, 2011		22		16.41		1.0	$	–
Outstanding and exercisable at December 31, 2012		6		20.20		–	$	–

In August 2007, we issued warrants to purchase 16 shares of restricted stock at $15.00 per share to a consultant as part of a borrowing facility in a prior year. Each warrant was exercisable, in whole or in part, until 60 months from the date of issuance. The fair value of the warrants was $240 on the date of the issuance, as calculated by the Black-Scholes option-pricing model. These warrants expired, unexercised, on August 6, 2012. At December 31, 2012 and 2011, there were 6 and 22 warrants outstanding, respectively.