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Commitments and Contingencies (Details Textual) | 1 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 08, 2018 USD ($) | Jan. 31, 2017 USD ($) | Jun. 29, 2018 USD ($) | Jun. 29, 2018 CHF (SFr) | Jun. 29, 2018 JPY (¥) | Dec. 29, 2017 USD ($) | Dec. 29, 2017 JPY (¥)
Line of Credit, Current |  |  | $ 4,517,000 |  |  | $ 4,438,000 |
Capital Lease Obligations, Current |  |  | 1,599,000 |  |  | 1,278,000 |
lease schedule 009R [Member] |  |  |  |  |  |  |
Capital Leases Transaction Net Proceeds Expiration Term |  | 24 months |  |  |  |  |
Capital Lease Obligations, Current |  |  | 576,000 |  |  | 1,067,000 |
Capital Lease Obligations |  | $ 1,957,000 |  |  |  |  |
Lease Schedule 010R [Member] |  |  |  |  |  |  |
Capital Leases Transaction Net Proceeds Expiration Term | 24 months |  |  |  |  |  |
Capital Lease Obligations | $ 1,560,000 |  | 1,221,000 |  |  |  |
Lease Schedule 011 [Member] |  |  |  |  |  |  |
Capital Lease Obligations | $ 500,000 |  | $ 468,000 |  |  |  |
Hardware Equipment [Member] | lease schedule 009R [Member] |  |  |  |  |  |  |
Capital Leases Transaction Imputed Interest Rate Term |  | 3.94% per $1 |  |  |  |  |
Hardware Equipment [Member] | Lease Schedule 010R [Member] |  |  |  |  |  |  |
Capital Leases Transaction Imputed Interest Rate Term | 3.94% per $1 |  |  |  |  |  |
Hardware Equipment [Member] | Lease Schedule 011 [Member] |  |  |  |  |  |  |
Capital Leases Transaction Imputed Interest Rate Term | 3.94% per $1 |  |  |  |  |  |
Non-Hardware Equipment [Member] | lease schedule 009R [Member] |  |  |  |  |  |  |
Capital Leases Transaction Imputed Interest Rate Term |  | 4.75% per $1 |  |  |  |  |
Non-Hardware Equipment [Member] | Lease Schedule 010R [Member] |  |  |  |  |  |  |
Capital Leases Transaction Imputed Interest Rate Term | 4.75% per $1 |  |  |  |  |  |
Non-Hardware Equipment [Member] | Lease Schedule 011 [Member] |  |  |  |  |  |  |
Capital Leases Transaction Imputed Interest Rate Term | 4.75% per $1 |  |  |  |  |  |
Mizuho Bank [Member] |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | ¥ |  |  |  |  | ¥ 500,000,000 |  | ¥ 500,000,000
Line of Credit Facility, Interest Rate Description |  |  | (approximately 0.06% as of June 29, 2018) plus a 0.50% spread, and may be renewed quarterly (the current line expires on August 21, 2018). |  |  |  |
Line of Credit, Current |  |  | $ 4,517,000 |  | ¥ 500,000,000 | 4,438,000 |
Interest Rate Increase In Case Of Default |  |  | 14.00% |  |  |  |
Credit Suisse Bank [Member] |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  | $ 1,000,000 | SFr 1,000,000 |  | $ 1,000,000 |
Percentage Of Commission On Outstanding Notes Payable |  |  | 0.25% |  |  |  |

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- Definition Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date. + 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=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737 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(a)(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition The carrying value as of the balance sheet date of the current portion 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 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(13)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: 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(19)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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