CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
ASSETS
Accounts receivable allowance	$ 25	$ 498
Inventory	$ 0	$ 205
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	15,032,000	15,131,000
Common stock outstanding	15,032,000	15,131,000