Quarterly report pursuant to Section 13 or 15(d)

Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parenthetical)

v3.7.0.1
Consolidated Statements of Changes in Stockholders' Equity (Unaudited) (Parenthetical)
12 Months Ended
Dec. 31, 2011
Statement of Stockholders' Equity [Abstract]  
Stock split ratio 0.125