Note 13 - Stockholders' Equity (Deficit) (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Aug. 31, 2001
Common Stock, Shares Authorized	250,000,000	250,000,000
Common Stock, Par or Stated Value Per Share (in Dollars per share)	$ 0.001	$ 0.001
Preferred Stock, Shares Authorized	10,000,000	10,000,000
Preferred Stock, Par or Stated Value Per Share (in Dollars per share)	$ 0.001	$ 0.001
Common Stock, Shares, Issued	86,598,659	86,481,495
Common Stock, Shares, Outstanding	86,598,659	86,481,495
Class of Warrant or Right, Outstanding	43,212,873	58,595,758
undefined	43,212,873
Convertible Debt (in Dollars)	$ 9,665,000
Debt Instrument, Convertible, Number of Equity Instruments	24,620,000
Conversion Price [Member] | Series A Preferred Stock [Member]
Convertible Preferred Stock, Terms of Conversion	$1.50
Conversion Price [Member] | Series B Preferred Stock [Member]
Convertible Preferred Stock, Terms of Conversion	$0.25
Conversion Price [Member] | Series C Preferred Stock [Member]
Convertible Preferred Stock, Terms of Conversion	$0.25
Conversion Date [Member] | Series A Preferred Stock [Member]
Convertible Preferred Stock, Terms of Conversion	one
Series A Preferred Stock [Member] | Minimum for 20 Consecutive Trading Days [Member]
Convertible Preferred Stock, Terms of Conversion	$3.00
Series A Preferred Stock [Member]
Preferred Stock, Shares Authorized	5,000,000	5,000,000
Preferred Stock, Par or Stated Value Per Share (in Dollars per share)	$ 0.001	$ 0.001
Preferred Stock, Dividend Rate, Percentage	5.00%
Preferred Stock, Shares Issued	4,125,224	4,125,224
Preferred Stock, Shares Outstanding	4,125,224	4,125,224
Preferred Stock Stated Value Per Share (in Dollars per share)	$ 1.00
Preferred Stock, Liquidation Preference Per Share (in Dollars per share)	$ 1.00
Preferred Stock, Voting Rights	one
Preferred Stock, Amount of Preferred Dividends in Arrears (in Dollars)	2,174,178	1,944,661
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears (in Dollars per share)	$ 0.53	$ 0.47
Conversion of Stock, Shares Converted	235,000
Series B Preferred Stock [Member] | Minimum for 20 Consecutive Trading Days [Member]
Convertible Preferred Stock, Terms of Conversion	$0.50
Series B Preferred Stock [Member] | Minimum [Member]
Convertible Preferred Stock, Terms of Conversion	$0.75
Proceeds from Issuance Initial Public Offering (in Dollars)	25,000,000
Series B Preferred Stock [Member]
Preferred Stock, Shares Authorized	230,000	230,000	200,000
Preferred Stock, Par or Stated Value Per Share (in Dollars per share)	$ 0.001	$ 0.001
Preferred Stock, Dividend Rate, Percentage	8.00%
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Preferred Stock Stated Value Per Share (in Dollars per share)	$ 10.00
Preferred Stock, Liquidation Preference Per Share (in Dollars per share)	$ 10.00
Preferred Stock, Voting Rights	one
Preferred Stock, Amount of Preferred Dividends in Arrears (in Dollars)	609,887	609,887
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears (in Dollars per share)	$ 3.05	$ 3.05
Conversion of Stock, Shares Converted	200,000
Series C Preferred Stock [Member] | Minimum [Member]
Convertible Preferred Stock, Terms of Conversion	2.5
Series C Preferred Stock [Member]
Preferred Stock, Shares Authorized	747,500	747,500
Preferred Stock, Par or Stated Value Per Share (in Dollars per share)	$ 0.001	$ 0.001
Preferred Stock, Dividend Rate, Percentage	8.00%
Preferred Stock, Shares Issued	0	0
Preferred Stock, Shares Outstanding	0	0
Preferred Stock Stated Value Per Share (in Dollars per share)	$ 10.00
Preferred Stock, Liquidation Preference Per Share (in Dollars per share)	$ 10.00
Preferred Stock, Voting Rights	one
Preferred Stock, Amount of Preferred Dividends in Arrears (in Dollars)	1,472,093	1,472,093
Preferred Stock, Per Share Amounts of Preferred Dividends in Arrears (in Dollars per share)	$ 4.36	$ 4.36
Conversion of Stock, Shares Converted	337,150
Proceeds from Issuance Initial Public Offering (in Dollars)	$ 25,000,000
Series D Preferred Stock [Member]
Preferred Stock, Shares Authorized	250,000	250,000
Preferred Stock, Par or Stated Value Per Share (in Dollars per share)	$ 0.001	$ 0.001
Preferred Stock, Shares Issued	250,000	250,000
Preferred Stock, Shares Outstanding	250,000	250,000
Preferred Stock, Liquidation Preference Per Share (in Dollars per share)	$ 0.001
Preferred Stock, Voting Rights	(400)