CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
CURRENT ASSTS:
Trade receivables, allowances (in dollars)	$ 464	$ 593
OTHER ASSETS:
Intangibles, accumulated amortization (in dollars)	10,215	6,695
Developed Technology accumulated amortization	$ 4,759	$ 2,301
STOCKHOLDERS' EQUITY:
Preferred stock, shares authorized	5,000	5,000
Preferred stock, shares issued	0	0
Common stock, shares authorized	100,000	100,000
Common stock, shares issued	42,008	35,496