XML 20 R18.htm IDEA: XBRL DOCUMENT v2.4.0.8

Subsequent Events	6 Months Ended
	Jun. 30, 2013
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Subsequent to June 30, 2013, the Company sold 4,248,455 shares of common stock under its ATM Sales Agreement for net proceeds of $6.1 million. Subsequent to June 30, 2013, warrants to purchase 5,273,392 shares of common stock were exercised for total proceeds to the Company of $5.3 million.

X

- Details

Name:	us-gaap_SubsequentEventsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

+ References

No definition available.

+ Details

Name:	us-gaap_SubsequentEventsTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration