Consolidated Statements of Operations and Comprehensive Income (Loss) (Parentheticals) (USD $) In Thousands, unless otherwise specified	3 Months Ended						12 Months Ended		3 Months Ended		12 Months Ended
	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2013	Dec. 31, 2011	Mar. 31, 2013 Revised [Member]	Dec. 31, 2012 Revised [Member]	Dec. 31, 2012 Revised [Member]
Income from discontinued operations gain on disposal	$ 0	$ 0	$ 3,646	$ 0	$ 0	$ 0	$ 3,646	$ 0	$ 0	$ 0	$ 0