Note 8 - Common Stock

12 Months Ended

Dec. 31, 2016

Notes to Financial Statements

Stockholders' Equity Note Disclosure [Text Block]

8. Common Stock

General

At

December

31,

2016,

the Company has

100,000,000

shares of Common Stock authorized for issuance,

$0.001

par value per share, of which

16,603,559

shares were issued and outstanding.

Reserved for Future Issuance

At

December

31,

2016,

the Company has

100,000,000

shares of Common Stock authorized for issuance,

$0.001

par value per share, of which

16,603,559

shares were issued and outstanding. The Company has the following shares of Common Stock reserved for future issuance:

	December 31,
	2016		2015
Stock-based compensation awards		2,982,470		2,419,901
Employee Stock Purchase Plan		292,821		297,359
Total		3,275,291		2,717,260