Note 8 - Stock Option and Stock Plans

12 Months Ended

Dec. 31, 2017

Notes to Financial Statements

Disclosure of Compensation Related Costs, Share-based Payments [Text Block]

8.

Stock Option and Stock Plans

Stock Plans *	Issue Date Range			Total Shares Authorized		Shares Issued		Shares Remaining
2008 Stock Incentive Plan	5/23/08	–	10/11/11		600,000		463,420		136,580

* The Board of Directors has approved all stock, stock option and stock warrant issuances.