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Summary of Significant Accounting Policies - Additional Information (Details)		3 Months Ended								12 Months Ended
	Jun. 29, 2020 USD ($)	Dec. 31, 2020 USD ($)	Sep. 30, 2020 USD ($)	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Dec. 31, 2020 USD ($) segment	Dec. 31, 2019 USD ($)
Significant Accounting Policies Additional Information [Line Items]
Maturity Period Of Highly Liquid Investments										90 days
Allowance for doubtful accounts receivable		$ 1,100,000				$ 100,000				$ 1,100,000	$ 100,000
Revenues		48,361,000	$ 11,172,000	$ 9,389,000	$ 9,774,000	9,242,000	$ 9,583,000	$ 8,464,000	$ 6,653,000	78,696,000	33,942,000
Impairment of intangible assets										0
Material unrecognized Tax Benefits		$ 0				0				$ 0	0
Operating Loss Carryforwards, Percent										80.00%
Period over which foreign subsidiaries subject to examination by indian tax authorities										3 years
Amount of maximum allowed reasearch and development credit usage	$ 5,000,000
Omit disclosure of the transaction price allocated to remaining performance obligations										true
Contract liabilities						$ 400,000					400,000
Contract with Customer, Liability, Revenue Recognized										$ 400,000	100,000
Number of Reportable Segments | segment										2
Foreign Currency Transaction Gain (Loss), before Tax										$ 5,200,000	2,900,000
Maximum [Member]
Significant Accounting Policies Additional Information [Line Items]
Property, Plant and Equipment, Useful Life										45 years
Equipment and Furniture [Member] | Minimum [Member]
Significant Accounting Policies Additional Information [Line Items]
Property, Plant and Equipment, Useful Life										3 years
Equipment and Furniture [Member] | Maximum [Member]
Significant Accounting Policies Additional Information [Line Items]
Property, Plant and Equipment, Useful Life										15 years
Building [Member] | Minimum [Member]
Significant Accounting Policies Additional Information [Line Items]
Property, Plant and Equipment, Useful Life										20 years
Computer Equipment [Member] | Minimum [Member]
Significant Accounting Policies Additional Information [Line Items]
Property, Plant and Equipment, Useful Life										3 years
Computer Equipment [Member] | Maximum [Member]
Significant Accounting Policies Additional Information [Line Items]
Property, Plant and Equipment, Useful Life										12 years
Freezer (Member) | Minimum [Member]
Significant Accounting Policies Additional Information [Line Items]
Property, Plant and Equipment, Useful Life										7 years
Freezer (Member) | Maximum [Member]
Significant Accounting Policies Additional Information [Line Items]
Property, Plant and Equipment, Useful Life										10 years
Truck and Auto (Member) | Minimum [Member]
Significant Accounting Policies Additional Information [Line Items]
Property, Plant and Equipment, Useful Life										4 years
Truck and Auto (Member) | Maximum [Member]
Significant Accounting Policies Additional Information [Line Items]
Property, Plant and Equipment, Useful Life										10 years
Foreign Customers [Member]
Significant Accounting Policies Additional Information [Line Items]
Revenues										$ 29,100,000	$ 5,100,000
Accounts Receivable [Member]
Significant Accounting Policies Additional Information [Line Items]
Concentration risk, percentage										10.00%	10.00%
Accounts Receivable [Member] | Customer One [Member]
Significant Accounting Policies Additional Information [Line Items]
Concentration risk, percentage											31.00%
Accounts Receivable [Member] | Customer Two [Member]
Significant Accounting Policies Additional Information [Line Items]
Concentration risk, percentage											20.70%
Sales Revenue, Net [Member]
Significant Accounting Policies Additional Information [Line Items]
Concentration risk, percentage										10.00%	10.00%
Sales Revenue, Net [Member] | Customer One [Member]
Significant Accounting Policies Additional Information [Line Items]
Concentration risk, percentage										24.10%
Sales Revenue, Net [Member] | Customer Two [Member]
Significant Accounting Policies Additional Information [Line Items]
Concentration risk, percentage										12.80%
Sales Revenue, Net [Member] | Foreign Customers [Member]
Significant Accounting Policies Additional Information [Line Items]
Concentration risk, percentage										37.00%	15.10%

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