Consolidated Balance Sheets (Current Period Unaudited) (Parentheticals) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Accounts receivable, allowance (in Dollars)	$ 457,000	$ 547,000
Common stock par value (in Dollars per share)	$ 0.001	$ 0.001
Common stock shares issued (in Shares)	38,477,359	37,046,405
Common stock, shares outstanding (in Shares)	38,477,359	37,046,405
Common stock shares authorized (in Shares)	100,000,000	100,000,000
Series A-1 Preferred Stock [Member]
Convertible preferred stock par value (in Dollars per share)	$ 0.001	$ 0.001
Convertible preferred stock authorized (in Shares)	5,000,000	5,000,000
Convertible preferred stock shares issued (in Shares)	1,000,000	1,000,000
Convertible preferred stock shares outstanding (in Shares)	1,000,000	1,000,000