UNAUDITED CONDENSED CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $) In Thousands, except Per Share data, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Allowance for doubtful accounts receivable (in dollars)	$ 1,971	$ 1,995
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	20,000	20,000
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	120,000	120,000
Common stock, shares outstanding	54,386	54,023
Treasury stock, shares	561	461
Term loan current
Term loan, discount (in dollars)	1,443	1,387
Term loan noncurrent
Term loan, discount (in dollars)	$ 6,919	$ 8,006