Business Combination (Narrative) (Details) - USD ($) shares in Thousands, $ in Thousands		7 Months Ended	12 Months Ended
	May 18, 2020	Dec. 31, 2020	Dec. 31, 2020	May 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Business Acquisition [Line Items]
Purchase price, paid in cash			$ 7,128
Change in fair value of contingent consideration			660
Contingent consideration amount		$ 3,574	3,574
Intangible assets	$ 6,400
Deferred tax liability, book-tax difference from amortization of intangible assets		1,008	1,008
Goodwill	$ 4,163	13,714	$ 13,714		$ 9,551	$ 10,808
Emerald Medical Services Pte., Ltd [Member] | Emerald Extrusion Services LLC [Member]
Business Acquisition [Line Items]
Ownership percentage	54.00%			54.00%
Emerald Medical Services Pte., Ltd [Member]
Business Acquisition [Line Items]
Acquisition date			May 18, 2020
Purchase price	$ 11,815
Purchase price, paid in cash	7,128
Post-closing working capital adjustment	291
Common stock value of issuance from business combination	$ 982
Contingent consideration liability, term	18 months
Change in fair value of contingent consideration		660	$ 660
Contingent consideration amount	$ 3,414	500	500
Shares issued, acquisition related	80
Additional earn-out payments percent	28.00%
Acquisition costs		493	$ 493
Revenue attributable to acquirees		7,361
Net income		$ 30
Intangible assets	$ 6,400
Acquired finite-lived intangible assets amortization period			8 years
Deferred tax liability, book-tax difference from amortization of intangible assets	1,055
Goodwill	4,041
Purchase accounting adjustments related to accrued salaries and goodwill			$ 122
Emerald Medical Services Pte., Ltd [Member] | Maximum [Member]
Business Acquisition [Line Items]
Earn out	1,000
Emerald Medical Services Pte., Ltd [Member] | Minimum [Member]
Business Acquisition [Line Items]
Earn out	333
Emerald Medical Services Pte., Ltd [Member] | Cash Payment, Regulatory Approval In Japan [Member]
Business Acquisition [Line Items]
Contingent consideration liability, term			12 months
Contingent consideration amount	500
Emerald Medical Services Pte., Ltd [Member] | Earn-Out Payment, Net Revenue During First Year [Member] | Maximum [Member]
Business Acquisition [Line Items]
Revenues	11,000
Emerald Medical Services Pte., Ltd [Member] | Earn-Out Payment, Net Revenue During First Year [Member] | Minimum [Member]
Business Acquisition [Line Items]
Revenues	$ 9,000
Emerald Medical Services Pte., Ltd [Member] | Additional Earn-Out Payment [Member]
Business Acquisition [Line Items]
Contingent consideration liability, term			3 years