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Summary of Significant Accounting Policies - Additional Information (Details) |  | 3 Months Ended | 12 Months Ended
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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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