Condensed Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data	Sep. 30, 2011	Dec. 31, 2010
ASSETS
Allowance for accounts receivable	$ 133	$ 160
Stockholders' equity:
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	18,191,626	18,285,784
Common stock, shares outstanding	18,191,626	18,285,784