CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, except Share data	Sep. 30, 2011	Dec. 31, 2010
CONDENSED CONSOLIDATED BALANCE SHEETS
Accounts receivable, allowance for doubtful accounts (in dollars)	$ 597	$ 378
Preferred stock, par value (in dollars per share)	$ 0.05	$ 0.05
Preferred stock, shares authorized	4,000,000	4,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.05	$ 0.05
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares issued	13,353,639	13,224,696
Common stock, shares outstanding	13,353,639	13,224,696