Consolidated Balance Sheets (Parenthetical) (USD $)	Sep. 30, 2012	Dec. 31, 2011
Accounts receivable, allowance for doubtful accounts	$ 509,000	$ 509,000
Common stock, authorized	100,000,000	100,000,000
Common stock, par value	$ 0.001	$ 0.001
Common stock, issued	34,135,000	34,074,000
Common stock, outstanding	34,135,000	34,074,000