Note 8 - Income Taxes (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	34.00%
Minimum
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2019
Maximum
Operating Loss Carryforwards, Expiration Date	Dec. 31, 2032
Internal Revenue Service (IRS)
Operating Loss Carryforwards	$ 165,300
Internal Revenue Service (IRS) | Expired
Operating Loss Carryforwards	2,541
Internal Revenue Service (IRS) | Expire 2014-2016
Operating Loss Carryforwards	800
State and Local Jurisdiction | Expire on Various Dates
Operating Loss Carryforwards	$ 144,600