UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Income Statement [Abstract]
Net Sales	$ 15,988	$ 15,280	$ 46,599	$ 47,033
Cost of Sales	16,317	14,934	46,788	44,693
Gross (Loss) Profit	(329)	346	(189)	2,340
Research and Product Development	1,221	1,745	5,445	5,183
Selling and Marketing	1,541	1,669	4,860	5,738
General and Administrative	3,881	3,622	11,483	11,767
Operating Loss	(6,972)	(6,690)	(21,977)	(20,348)
Other (Expense) Income
Realized (Loss) Gain on Investments	0	4	(1)	8
Warrant Modification Expense	0	0	0	(837)
Interest Expense	(609)	(666)	(1,772)	(1,289)
Interest Income	0	2	17	239
Total Other Expense	(609)	(660)	(1,756)	(1,879)
Net Loss	$ (7,581)	$ (7,350)	$ (23,733)	$ (22,227)
Basic Net Loss per Share (in dollars per share)	$ (0.08)	$ (0.10)	$ (0.26)	$ (0.32)
Diluted Net Loss per Share (in dollars per share)	$ (0.08)	$ (0.10)	$ (0.26)	$ (0.32)
Basic Weighted Average Shares Outstanding (in shares)	93,882,142	71,811,322	93,726,629	69,594,167
Diluted Weighted Average Shares Outstanding (in shares)	93,882,142	71,811,322	93,726,629	69,594,167