Note 7 - Common Stock

6 Months Ended

Jun. 30, 2015

Notes to Financial Statements

Stockholders' Equity Note Disclosure [Text Block]

7. Common Stock

At June 30, 2015, the Company has 100,000,000 shares of Common Stock authorized for issuance, $0.001 par value per share, of which 16,458,477 shares were issued and outstanding. After the 5,864 shares issued in the second quarter for the ESPP plan, the Company has the following shares of Common Stock reserved for future issuance:

	June 30, 2015		December 31, 2014
Stock-based compensation awards		2,461,157		1,807,349
Employee Stock Purchase Plan		299,127		140,500
Total		2,760,284		1,947,849