Note 9 - Common Stock

12 Months Ended

Dec. 31, 2017

Notes to Financial Statements

Common Stock [Text Block]

9. Common Stock

General

At

December 31, 2017,

the Company has

100,000,000

shares of Common Stock authorized for issuance,

$0.001

par value per share, of which

17,674,729

shares were issued and outstanding.

Reserved for Future Issuance

The Company has the following shares of Common Stock reserved for future issuance:

	December 31,		December 31,
	2017		2016
Conversion of Series A Preferred Stock		22,112,775		-
Stock-based compensation awards		3,572,457		2,982,470
Employee Stock Purchase Plan		192,463		292,821
Total		25,877,695		3,275,291