Share-based Compensation (Details) - Common stock options	9 Months Ended
	Sep. 30, 2016 $ / shares shares
Options
Outstanding at beginning of year | shares	2,555,263
Granted | shares	734,000
Exercised | shares	(103,308)
Forfeited | shares	(446,209)
Expired | shares	(172,418)
Outstanding at September 30, 2016 | shares	2,567,328
Stock options exercisable at September 30, 2016 | shares	1,297,061
Wtd. Avg. Exercise Price
Outstanding at beginning of year | $ / shares	$ 1.80
Granted | $ / shares	1.81
Exercised | $ / shares	1.22
Forfeited | $ / shares	2.14
Vested Shares Expired | $ / shares	1.33
Outstanding at June 30, 2016 | $ / shares	1.79
Stock options exercisable at June 30, 2016 | $ / shares	$ 1.65