Stock-Based Compensation (Schedule of Stock Option Activity) (Details) (USD $)	6 Months Ended
	Jun. 30, 2014
Shares
Outstanding, beginning balance	633,482
Granted	293,879
Exercised	(67,794)
Forfeited	(22,428)
Outstanding, ending balance	837,139
Weighted Average Exercise Price
Outstanding, beginning balance	$ 3.36
Granted	$ 6.43
Exercised	$ 0.69
Forfeited	$ 0.93
Outstanding, ending balance	$ 4.72
Weighted average grant-date fair value of stock options granted	$ 4.09
Options Outstanding, Weighted Average Remaining Contractual Life (Years)	7 years 9 months 18 days
Options Exercisable, shares	404,672
Options Exercisable, Weighted Average Remaining Contractual Life (Years)	6 years
Options Exercisable, Weighted Average Exercise Price	$ 2.03
Options Vested and expected to vest, shares	404,672
Options Vested and expected to vest, Weighted Average Remaining Contractual Life (Years)	6 years
Options Vested and expected, Weighted Average Exercise Price	$ 2.03
Unrecognized compensation expense related to stock options	$ 2,693,074
Weighted average recognition period	17 months