XML 48 R34.htm IDEA: XBRL DOCUMENT

Employee Stock Purchases (Details Textual) (1995 Employee Stock [Member], USD $)	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
1995 Employee Stock [Member]
Employee Stock Purchases (Textual) [Abstract]
Shares of common stock issued under employee stock purchases	1,744	721
Proceeds from employee stock purchases	$ 1,000	$ 1,000

The cash inflow associated with the amount received from the stock plan during the period.

Number of shares issued during the period as a result of an employee stock purchase plan.