Accrued Liabilities (Narrative) (Details)	6 Months Ended
	Jun. 30, 2017 USD ($) ft²	Jan. 31, 2017 USD ($) ft²	Dec. 31, 2016 USD ($)	Aug. 31, 2016 USD ($) ft²	Dec. 31, 2015 ft²	Sep. 30, 2013 USD ($) ft²
Real Estate [Line Items]
Accrued costs of rent liability	$ 640,496		$ 965,412
Office [Member]
Real Estate [Line Items]
Square feet of leased space | ft²	52,000				3,152
Sublease expiration date	Dec. 31, 2018
Demonstration And Assembly [Member]
Real Estate [Line Items]
Square feet of leased space | ft²	12,000
Unimproved [Member]
Real Estate [Line Items]
Square feet of leased space | ft²						13,000
Accrued lease termination costs remaining	$ 138,528
Accrued costs of rent liability						$ 515,138
Office Sublease [Member]
Real Estate [Line Items]
Square feet of leased space | ft²				11,000
Accrued lease termination costs remaining	$ 38,633
Sublease expiration date	Dec. 31, 2018
Accrued costs of rent liability				$ 40,972
Office Sublease, January 2017 [Member]
Real Estate [Line Items]
Square feet of leased space | ft²		16,000
Sublease expiration date	Dec. 31, 2018
Accrued costs of rent liability		$ 28,208