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Short Term Debt - Additional Information (Details) - USD ($) $ in Thousands |  |  |  | 6 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Jul. 01, 2020 | May 01, 2020 | Apr. 30, 2020 | Jun. 27, 2020 | Dec. 28, 2019 | Aug. 14, 2017
Short Term Debt [Line Items] |  |  |  |  |  |
Short term debt |  |  |  | $ 3,469 | $ 280 |
Customer Advance Payments |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |
Debt maturity date |  |  |  | Dec. 31, 2021 |  |
Short term debt |  |  |  | $ 1,168 |  |
Total funding received |  |  | $ 1,168 | 1,168 |  |
Amount of debt forgiven |  |  |  | 0 |  |
Promissory Note | PPP Loan |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |
Debt maturity date |  | Apr. 27, 2022 |  |  |  |
Loan amount |  | $ 1,872 |  | 1,872 |  |
Credit facility interest rate |  | 1.00% |  |  |  |
AFCO Financing Agreement |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |
Short term debt |  |  |  | 429 | 155 |
GE 8% Loan Agreement |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |
Debt interest rate |  |  |  |  |  | 8.00%
AFCO Credit Corporation |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |
Debt face amount |  |  |  | $ 429 |  |
Debt interest rate |  |  |  | 3.30% |  |
Frequency of periodic payment |  |  |  | monthly |  |
Debt maturity date |  |  |  | Dec. 01, 2020 |  |
Short term debt |  |  |  | $ 429 | $ 155 |
AFCO Credit Corporation | Subsequent Event |  |  |  |  |  |
Short Term Debt [Line Items] |  |  |  |  |  |
Initial down payment | $ 143 |  |  |  |  |
Monthly principal payments | $ 48 |  |  |  |  |

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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
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- Definition Description of the frequency of periodic payments (monthly, quarterly, annual). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 470 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=75038535&loc=d3e64711-112823 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 + Details
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