CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
CONSOLIDATED BALANCE SHEETS
Accounts receivable, allowance (in dollars)	$ 2,820	$ 1,346
Preferred stock, shares authorized	1,000	1,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock and additional paid-in capital, shares authorized	29,000	29,000
Common stock and additional paid-in capital, shares issued	13,697	12,193
Common stock and additional paid-in capital, shares outstanding	13,697	12,193