Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, except Share data	Jun. 30, 2011	Dec. 31, 2010
Current assets:
Allowance for accounts receivable	$ 304	$ 166
Accumulated depreciation	$ 3,028	$ 2,973
Shareholders' equity:
Common stock, par value	$ 0	$ 0
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	31,992,581	30,418,301
Common stock, shares outstanding	31,992,581	30,418,301