Summary of Significant Accounting Policies (Details 1) - shares	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Potentially dilute securities excluded from calculation	1,583,351	1,603,271
Convertible preferred stock [Member]
Potentially dilute securities excluded from calculation	2,926	2,926
Warrants to purchase common stock [Member]
Potentially dilute securities excluded from calculation	1,251,709	1,251,709
Non-vested restricted stock units [Member]
Potentially dilute securities excluded from calculation		59,256
Options to purchase common stock [Member]
Potentially dilute securities excluded from calculation	328,716	289,380