Income Taxes (Details Narrative) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Note 10 - Income Taxes (Details) [Line Items]
Effective income tax rate reconciliation, at federal statutory income tax rate, percent	34.00%	34.00%
Valuation allowance, deferred tax asset, increase (decrease), amount	$ (434,000)	$ (1,470,000)
Percentage of cumulative ownership	50.00%
Internal Revenue Service (IRS) [Member] | Domestic Tax Authority [Member]
Note 10 - Income Taxes (Details) [Line Items]
Operating loss carryforwards	$ 63,300,000
Operating loss expiration date	expire in 2018
Internal Revenue Service (IRS) [Member] | Domestic Tax Authority [Member] | Research Tax Credit Carryforward [Member]
Note 10 - Income Taxes (Details) [Line Items]
Tax credit carryforward, amount	$ 1,000,000
California Franchise Tax Board [Member] | State and Local Jurisdiction [Member]
Note 10 - Income Taxes (Details) [Line Items]
Operating loss carryforwards	$ 6,900,000
Operating loss expiration date	expire in 2015