Stockholders' Equity (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Stockholders' Equity [Line Items]
Common Stock, Shares Authorized	110,000,000	110,000,000
Common Stock, Par Or Stated Value Per Share	$ 0.001	$ 0.001
Common Stock, Shares, Outstanding	82,730,134	82,520,696
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	0	863,933
Proceeds from Stock Options Exercised	$ 0	$ 701,705
Preferred Stock, Shares Authorized	10,000,000	10,000,000
Preferred Stock, Par or Stated Value Per Share	$ 0.001	$ 0.001
Preferred Stock, Shares Issued	2,045,714	2,045,714
Convertible Preferred Stock, Shares Reserved for Future Issuance	7,945,286
Employee Stock Option [Member]
Stockholders' Equity [Line Items]
Proceeds from Stock Options Exercised		$ 701,700
Common Stock [Member]
Stockholders' Equity [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		863,933
Common Stock [Member] | Employee Stock Option [Member]
Stockholders' Equity [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		863,933