CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
ASSETS
Accounts receivable allowance	$ 1,079	$ 1,006
Stockholders' equity:
Preferred stock par value	$ 0.001	$ 0.001
Preferred stock shares authorized	10,000,000	10,000,000
Preferred stock shares issued	0	0
Preferred stock shares outstanding	0	0
Common stock par value	$ 0.001	$ 0.001
Common stock shares authorized	24,500,000	24,500,000
Common stock issued	15,195,000	15,261,000
Common stock outstanding	15,195,000	15,261,000