Common Stock Warrant and Option Exercises and Employee Stock Purchases (Tables)

12 Months Ended

Dec. 31, 2016

Common Stock Warrant and Option Exercises and Employee Stock Purchases

Schedule of common stock a result of warrant exercises, stock option exercises and employee stock purchases

	2016			2015			2014
(In thousands)	Shares	Proceeds		Shares	Proceeds		Shares	Proceeds
Warrant exercises	1,370	$	2,000	2,968	$	1,888	5,544	$	7,534
Stock option exercises	—		—	406		584	374		890
Employee stock purchases	121		172	28		74	14		32
Total	1,491	$	2,172	3,402	$	2,546	5,932	$	8,456