Intangible Assets Other Than Goodwill (Details) - Schedule of Intangible Assets and Goodwill - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020
Intangible Assets Other Than Goodwill (Details) - Schedule of Intangible Assets and Goodwill [Line Items]
Gross Carrying Amount	$ 60,340	$ 60,340
Accumulated Amortization	(58,563)	(58,309)
Net Amount	1,777	2,031
Gross Carrying Amount	300	300
Net Amount	300	300
Trademarks [Member]
Intangible Assets Other Than Goodwill (Details) - Schedule of Intangible Assets and Goodwill [Line Items]
Gross Carrying Amount	300	300
Net Amount	$ 300	300
Licensing Agreements [Member]
Intangible Assets Other Than Goodwill (Details) - Schedule of Intangible Assets and Goodwill [Line Items]
Weighted Useful Lives	5 years 9 months 21 days
Gross Carrying Amount	$ 20,130	20,130
Accumulated Amortization	(20,130)	(20,130)
Net Amount	$ 0	0
Product Lines [Member]
Intangible Assets Other Than Goodwill (Details) - Schedule of Intangible Assets and Goodwill [Line Items]
Weighted Useful Lives	10 years 4 months 9 days
Gross Carrying Amount	$ 33,858	33,858
Accumulated Amortization	(32,081)	(31,827)
Net Amount	$ 1,777	2,031
Customer Relationships [Member]
Intangible Assets Other Than Goodwill (Details) - Schedule of Intangible Assets and Goodwill [Line Items]
Weighted Useful Lives	4 years 10 months 24 days
Gross Carrying Amount	$ 3,152	3,152
Accumulated Amortization	(3,152)	(3,152)
Net Amount	$ 0	0
Trade Names [Member]
Intangible Assets Other Than Goodwill (Details) - Schedule of Intangible Assets and Goodwill [Line Items]
Weighted Useful Lives	5 years
Gross Carrying Amount	$ 3,000	3,000
Accumulated Amortization	(3,000)	(3,000)
Net Amount	$ 0	0
Noncompete Agreements [Member]
Intangible Assets Other Than Goodwill (Details) - Schedule of Intangible Assets and Goodwill [Line Items]
Weighted Useful Lives	5 years
Gross Carrying Amount	$ 200	200
Accumulated Amortization	(200)	(200)
Net Amount	$ 0	$ 0