CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (Parenthetical)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Issuance of stock
Shares in connection with exercise of options (in shares)			7,850
Shares of restricted stock (in shares)	67,996	108,646	76,548
Shares in connection with Valent acquisition (in shares)		783,798