CONSOLIDATED INCOME STATEMENTS - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
CONSOLIDATED INCOME STATEMENTS
Sales	$ 13,243,107	$ 13,452,517	$ 27,835,361	$ 27,079,565
Cost of Sales	11,744,819	11,962,989	23,979,601	23,895,111
Gross Profit	1,498,288	1,489,528	3,855,760	3,184,454
Selling, General and Administrative	6,541,179	5,014,370	12,641,894	10,001,111
Research and Product Development	1,675,494	2,063,324	2,890,345	3,377,754
Operating Income (Loss)	(6,718,385)	(5,588,166)	(11,676,479)	(10,194,411)
Interest and Investment Income, net	(364,599)	227,020	(148,528)	413,582
Income (Loss) Before Income Taxes	(7,082,984)	(5,361,146)	(11,825,007)	(9,780,829)
Income Tax Expense				404,527
Net Income (Loss)	$ (7,082,984)	$ (5,361,146)	$ (11,825,007)	$ (10,185,356)
Basic Earnings (Loss) per Share	$ (0.14)	$ (0.11)	$ (0.23)	$ (0.20)
Diluted Earnings (Loss) per Share	$ (0.14)	$ (0.11)	$ (0.23)	$ (0.20)