6. Net Loss per Common Share (Details) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Net Loss Per Common Share Details
Basic and diluted weighted average common stock shares outstanding	5,568,802	4,990,971
Common stock options	1,370,465	1,419,553
Common stock purchase warrants	$ 7,428,141	$ 551,339