UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
Net Sales	$ 15,137	$ 15,896	$ 30,611	$ 31,753
Cost of Sales	15,399	15,015	30,471	29,759
Gross Profit	(262)	881	140	1,994
Research and Product Development	2,416	1,616	4,224	3,438
Selling and Marketing	1,468	1,997	3,319	4,069
General and Administrative	3,677	2,871	7,602	8,145
Operating Loss	(7,823)	(5,603)	(15,005)	(13,658)
Other (Expense) Income
Realized (Loss) Gain on Investments	(1)	2	(1)	4
Warrant Modification Expense	0	(837)	0	(837)
Interest Expense	(583)	(521)	(1,164)	(623)
Interest Income	7	67	18	238
Total Other Expense	(577)	(1,289)	(1,147)	(1,218)
Net Loss	$ (8,400)	$ (6,892)	$ (16,152)	$ (14,876)
Basic Net Loss per Share (in dollars per share)	$ (0.09)	$ (0.10)	$ (0.17)	$ (0.22)
Diluted Net Loss per Share (in dollars per share)	$ (0.09)	$ (0.10)	$ (0.17)	$ (0.22)
Basic Weighted Average Shares Outstanding (in shares)	93,703,492	69,428,574	93,647,583	68,473,407
Diluted Weighted Average Shares Outstanding (in shares)	93,703,492	69,428,574	93,647,583	68,473,407