XML 61 R7.htm IDEA: XBRL DOCUMENT v2.4.0.8
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parenthetical) (USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Statement of Comprehensive Income [Abstract]      
Unrealized net loss on available-for-sale securities, tax $ 0 $ 0 $ 0