CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical)-K	12 Months Ended
Dec. 31, 2012
CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
Issuance of shares of common stock	1,525,272

Number of share warrants (or share units) exercised during the current period.

No definition available.

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Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration