CONSOLIDATED INCOME STATEMENTS - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CONSOLIDATED INCOME STATEMENTS
Sales	$ 53,284,166	$ 55,350,702	$ 54,188,444
Cost of Sales	46,531,648	46,412,848	45,643,231
Gross Profit	6,752,518	8,937,854	8,545,213
Selling, General and Administrative	21,120,901	19,078,867	18,320,720
Research and Product Development	5,840,346	4,961,313	7,783,594
Operating Income (Loss)	(20,208,729)	(15,102,326)	(17,559,101)
Interest and Investment Income, net	810,340	681,876	386,257
Interest (Expense)			(4,154,313)
Income (Loss) Before Income Taxes	(19,398,389)	(14,420,450)	(21,327,157)
Income Tax Expense	404,527	0	0
Net Income (Loss)	$ (19,802,916)	$ (14,420,450)	$ (21,327,157)
Basic Earnings (Loss) per Share	$ (0.39)	$ (0.29)	$ (0.52)
Diluted Earnings (Loss) per Share	$ (0.39)	$ (0.29)	$ (0.52)