Note 3 - Redeemable Series C Preferred Stock and Shareholders' Equity (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Convertible Preferred Stock [Member]
Stockholders' Equity Note [Abstract]
Preferred Stock, Redemption Price Per Share	$ 1
Convertible Preferred Stock Conversion Price	$ 1
Preferred Stock, Liquidation Preference Per Share	$ 1
Preferred Stock, Liquidation Preference, Value	$ 255,000	$ 255,000
Series B Preferred Stock [Member]
Stockholders' Equity Note [Abstract]
Convertible Preferred Stock, Shares Issued upon Conversion	3
Convertible Preferred Stock Conversion Price	$ 0.33
Preferred Stock, Liquidation Preference Per Share	$ 1
Preferred Stock, Liquidation Preference, Value	1,102,433	1,102,433
Series C Preferred Stock [Member]
Stockholders' Equity Note [Abstract]
Preferred Stock, Redemption Price Per Share	$ 16.09
Series D Preferred Stock [Member]
Stockholders' Equity Note [Abstract]
Preferred Stock, Redemption Price Per Share	$ 1
Preferred Stock, Dividend Rate, Per-Dollar-Amount	$ 0.10
Preferred Stock, Amount of Preferred Dividends in Arrears	828,000
Preferred Stock, Liquidation Preference, Value	$ 1,518,000	$ 1,518,000