Consolidated Statements Of Changes In Shareholders' Equity - 3 months ended Mar. 31, 2018 - USD ($)	COMMON SHARES	ACCUMULATED DEFICIT	ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)	Total
Balance at Dec. 31, 2017	$ 273,210,907	$ (240,262,376)	$ (35,383)	$ 32,913,148
Balance (in shares) at Dec. 31, 2017	51,768,424			51,768,424
Increase (Decrease) in Shareholders' Equity
Net Loss		(6,529,521)		$ (6,529,521)
Unrealized Gain (Loss) on Available-For-Sale Securities			(189,995)	(189,995)
Foreign Currency Translation Adjustments			(2,485)	(2,485)
Shares Issued in Exchange for Services	$ 68,653			68,653
Stock Option Based Expense	616,273			616,273
Restricted Stock Amortization	491,077			491,077
Balance at Mar. 31, 2018	$ 274,386,910	$ (246,791,897)	$ (227,863)	$ 27,367,150
Balance (in shares) at Mar. 31, 2018	51,768,424			51,768,424