Warrants (Details) (USD $)		1 Months Ended	12 Months Ended	0 Months Ended	1 Months Ended		12 Months Ended
	Sep. 03, 2013	Jan. 17, 2012 Silicon Valley Bank and Oxford Finance LLC [Member]	Dec. 31, 2013 Silicon Valley Bank and Oxford Finance LLC [Member]	Sep. 03, 2013 Merger Agreement [Member] Rate	Mar. 22, 2013 2013 PIPE investors [Member] Stock Purchase Agreement 2013 [Member] investors	Mar. 22, 2013 2013 PIPE investors [Member] Stock Purchase Agreement 2013 [Member] Related Parties [Member]	Dec. 31, 2013 2013 PIPE investors [Member] Stock Purchase Agreement 2013 [Member] Related Parties [Member]
Class of Warrant or Right [Line Items]
Number of investors					17
Stock issued, shares					2,420,000	1,280,000
Stock issued, price per share					$ 1.25
Proceeds from PIPE					$ 3,000,000
Warrants to purchase common shares		279,586			1,209,600	640,000
Warrants, exercise price					$ 1.65
Warrant, expiration period		10 years			5 years
Warrants outstanding	1,200,000
Warrants exercised			139,793				54,000
Stock issued due to exercise of options			112,766
Other expense		$ 1,800,000
Exchange ratio				1.1533