CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
ASSETS
Cash compensating balance	$ 3,900	$ 3,900
Accounts receivable allowance	$ 150	$ 498
Stockholders' equity:
Preferred stock par value	$ .001	$ 0.001
Preferred stock shares authorized	10,000,000	0
Preferred stock shares issued	0	0
Preferred stock shares outstanding	0	0
Common stock par value	$ .001	$ 0.001
Common stock shares authorized	24,500,000	24,500,000
Common stock issued	15,631,000	15,130,000
Common stock outstanding	15,631,000	15,130,000