Note 10 - Share-based Compensation (Details) - Stock Option Award Activity (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013
Stock Option Award Activity [Abstract]
Outstanding at January 1 (in Shares)	60,000		79,000
Outstanding at January 1	$ 19.63		$ 23.52
Forfeited or Cancelled (in Shares)	(12,500)		(19,000)
Forfeited or Cancelled	$ 33.88		$ 35.82
Forfeited or Cancelled	$ 10.63		$ 12.29
Outstanding at December 31 (in Shares)	47,500		60,000
Outstanding at December 31	$ 15.88		$ 19.63
Outstanding at December 31	$ 6.46		$ 7.33
Outstanding at December 31	3 years 36 days		3 years 146 days
Outstanding at December 31 (in Dollars)	$ 0	[1]	$ 0
Exercisable (in Shares)	47,500		55,000
Exercisable	$ 15.88		$ 20.94
Exercisable	$ 6.46		$ 7.77
Exercisable	3 years 36 days		2 years 6 months
Exercisable (in Dollars)	0	[1]	0
Expected to Vest (in Shares)	0	[2]	3,600
Expected to Vest	$ 0	[2]	$ 5.20
Expected to Vest	$ 0	[2]	$ 2.48
Expected to Vest			5 years 73 days
Expected to Vest (in Dollars)	$ 0	[1],[2]	$ 0

[1] For in the money options

[2] Options expected to vest reflect estimated forfeitures.