Note 9 - Income Taxes (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Tax Year 2012 [Member]
Open Tax Year		2012
Tax Year 2013 [Member]
Open Tax Year		2013
Tax Year 2014 [Member]
Open Tax Year		2014
Latest Tax Year [Member]
Open Tax Year	2015
Domestic Tax Authority [Member]
Operating Loss Carryforwards	$ 10,971,000
State and Local Jurisdiction [Member]
Operating Loss Carryforwards	10,825,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	0
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	0
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	0
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		34.00%
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	363,000	$ 2,400,000	$ (225,000)
Deferred Tax Assets, Tax Credit Carryforwards, Alternative Minimum Tax	$ 148,000	$ 148,000