Note 11 - Income Taxes (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Apr. 30, 2013	Dec. 31, 2012
Note 11 - Income Taxes (Details) [Line Items]
Unrecognized Tax Benefits, Period Increase (Decrease)		$ (248,000)
Unrecognized Tax Benefits		0		248,000
Unrecognized Tax Benefits, Interest on Income Taxes Accrued	0	296,000
Income Tax Examination, Liability (Refund) Adjustment from Settlement with Taxing Authority		(500,000)
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%
Operating Loss Carryforwards		108,500,000
Income Tax Examination Tax Penalties and Interest Accrued			1,800,000
Income Taxes Paid	600,000	700,000
State and Local Jurisdiction [Member]
Note 11 - Income Taxes (Details) [Line Items]
Operating Loss Carryforwards	$ 124,200,000