CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
CONDENSED CONSOLIDATED BALANCE SHEETS
Accounts receivable, allowance (in dollars)	$ 2	$ 2
Common stock, shares issued	31,184	30,351
Common stock, shares outstanding	31,184	30,351