Note 10 - Stockholders' Equity (Detail)	12 Months Ended							12 Months Ended			1 Months Ended	12 Months Ended			12 Months Ended			12 Months Ended				12 Months Ended
	Dec. 31, 2012 USD ($)	Dec. 31, 2011 USD ($)	Jan. 31, 2013	Dec. 31, 2012 GBP (£)	Apr. 30, 2012	Dec. 31, 2011 GBP (£)	Dec. 31, 2010	Dec. 31, 2012 Scenario, Forecast [Member] Series G1 Preferred Stock [Member] USD ($)	Dec. 31, 2012 Scenario, Forecast [Member] Series G2 Preferred Stock [Member] USD ($)	Dec. 31, 2012 After Reverse Stock Split [Member]	Apr. 30, 2011 Rights Offering [Member] USD ($)	Dec. 31, 2012 Series G1 Preferred Stock [Member] USD ($)		Dec. 31, 2011 Series G1 Preferred Stock [Member]	Dec. 31, 2012 Series G2 Preferred Stock [Member] USD ($)		Dec. 31, 2011 Series G2 Preferred Stock [Member]	Dec. 31, 2011 BWI [Member]	Jun. 30, 2009 BWI [Member]	Dec. 31, 2011 BWI [Member]	Sep. 30, 2012 Prior to Reverse Stock Split [Member]	Dec. 31, 2012 Private Transactions [Member] USD ($)
Common Stock, Shares Authorized	2,000,000	24,000,000								2,000,000											24,000,000
Common Stock, Par or Stated Value Per Share (in Dollars per share)	$ 0.01	$ 0.01
Common Stock, Shares, Outstanding	435,328	462,015
Common Stock, Shares, Issued	435,328	462,015
Stock Issued During Period, Shares, Rights Offering											187,000
Share Price (in Dollars per share)				£ 1.18		£ 1.06					$ 80.00
Proceeds from Issuance of Common Stock (in Dollars)		$ 14,747,000									$ 14,700,000
Stock Repurchase Program, Number of Shares Authorized to be Repurchased			45,000		25,000
Treasury Stock, Shares, Acquired	25,000																					21,000
Treasury Stock, Shares, Retired	25,000
Payments for Repurchase of Common Stock (in Dollars)	2,901,000	819,000																				2,500,000
Stock Repurchase Program, Remaining Number of Shares Authorized to be Repurchased	3,000
Preferred Stock, Liquidation Preference Per Share (in Dollars per share)												$ 100			$ 100
Convertible Preferred Stock Conversion Price (in Dollars)												11,200	[1]		2,688	[1]
Preferred Stock, Shares Outstanding												1,000		1,000	1,000		1,000
Preferred Stock, Shares Issued												1,000		1,000	1,000		1,000
Preferred Stock, Dividend Rate, Per-Dollar-Amount (in Dollars per share)												$ 8			$ 8
Preferred Stock Dividend Value Of Common Stock Used (in Dollars)								$ 11,200	$ 2,688
Convertible Preferred Stock, Terms of Conversion															The Series G2 preferred is also convertible by us into shares of our common stock if for any period of twenty consecutive calendar days the average of the closing prices of our common stock during such period shall have equaled or exceeded $3,360 per share
Percentage Of Outstanding Units Of BWI Purchased																		47.91%
Stock Issued During Period, Shares, Acquisitions		32,156																32,156
Noncontrolling Interest, Ownership Percentage by Parent		100.00%					52.09%												19.50%	100.00%

[1] Certain conversion prices are subject to adjustment under certain circumstances.