XML 21 R31.htm IDEA: XBRL DOCUMENT

Significant Stock-Based Plan Activity and Stock-Based Compensation (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Stock-Based Compensation Expense [Abstract]
Unrecognized stock-based compensation expense	$ 1,800,000		$ 1,800,000
Weighted average remaining vesting period			3 years 4 months 24 days
Selling, general and administrative [Member]
Stock-Based Compensation Expense [Abstract]
Total stock-based compensation expense	$ 177,000	$ 210,000	$ 311,000	$ 249,000

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References+ Details