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Liabilities (Details Textual) |  |  | 1 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Jun. 07, 2016 USD ($) | Jun. 12, 2014 USD ($) | Jan. 31, 2017 USD ($) | Jan. 30, 2017 USD ($) | Dec. 30, 2016 USD ($) | Dec. 30, 2016 JPY (¥) | Dec. 30, 2016 CHF (SFr) | Jan. 01, 2016 USD ($) | Jan. 01, 2016 JPY (¥) | Dec. 28, 2012 JPY (¥)
Line of Credit Facility, Maximum Borrowing Capacity | ¥ |  |  |  |  |  |  |  |  |  | ¥ 500,000,000
Line Of Credit, Current |  |  |  |  | $ 4,283,000 | ¥ 500,000,000 |  | $ 4,159,000 | ¥ 500,000,000 |
Line of Credit Facility, Current Borrowing Capacity |  |  |  |  |  |  | SFr 1,000,000 | 1,000,000 |  |
Interest Rate Increase In Case Of Default |  |  |  |  | 14.00% |  |  |  |  |
Percentage Of Commission On Outstanding Notes Payable |  |  |  |  | 0.25% |  |  |  |  |
Asset Retirement Obligations, Noncurrent, Total |  |  |  |  | $ 195,000 |  |  | 156,000 |  |
lease schedule 009R [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Payments to Acquire Equipment on Lease |  |  | $ 1,957,000 |  |  |  |  |  |  |
Sale Leaseback Transaction Net Proceeds Expiration Term |  |  | 24 months |  |  |  |  |  |  |
lease schedule 008R [Member] |  |  |  |  |  |  |  |  |  |
Payments to Acquire Equipment on Lease |  | $ 964,612 |  |  |  |  |  |  |  |
Sale Leaseback Transaction Net Proceeds Expiration Term |  | 36 months |  |  |  |  |  |  |  |
Lease Line Of Credit [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  | 1,957,000 |  |  |  |  |
Line of Credit Facility, Current Borrowing Capacity | $ 2,000,000 |  |  |  | $ 43,000 |  |  |  |  |
Capital Leases Settled Through Sale Leaseback Transactions | $ 1,500,000 |  |  |  |  |  |  |  |  |
Lease Line Of Credit [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  | $ 2,000,000 |  |  |  |  |  |
Hardware Equipment [Member] | lease schedule 009R [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Sale Leaseback Transaction, Imputed Interest Rate Term |  |  | 3.94% per $1 |  |  |  |  |  |  |
Hardware Equipment [Member] | lease schedule 008R [Member] |  |  |  |  |  |  |  |  |  |
Sale Leaseback Transaction, Imputed Interest Rate Term |  | 2.81% per $1 |  |  |  |  |  |  |  |
Hardware Equipment [Member] | Lease Line Of Credit [Member] |  |  |  |  |  |  |  |  |  |
Sale Leaseback Transaction, Imputed Interest Rate Term | 3.94% per $1 |  |  |  |  |  |  |  |  |
Hardware Equipment [Member] | Lease Line Of Credit [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Sale Leaseback Transaction, Imputed Interest Rate Term |  |  |  | 3.94% per $1 |  |  |  |  |  |
Non-Hardware Equipment [Member] | lease schedule 009R [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Sale Leaseback Transaction, Imputed Interest Rate Term |  |  | 4.75% per $1 |  |  |  |  |  |  |
Non-Hardware Equipment [Member] | lease schedule 008R [Member] |  |  |  |  |  |  |  |  |  |
Sale Leaseback Transaction, Imputed Interest Rate Term |  | 3.12% per $1 |  |  |  |  |  |  |  |
Non-Hardware Equipment [Member] | Lease Line Of Credit [Member] |  |  |  |  |  |  |  |  |  |
Sale Leaseback Transaction, Imputed Interest Rate Term | 4.75% per $1 |  |  |  |  |  |  |  |  |
Non-Hardware Equipment [Member] | Lease Line Of Credit [Member] | Subsequent Event [Member] |  |  |  |  |  |  |  |  |  |
Sale Leaseback Transaction, Imputed Interest Rate Term |  |  |  | 4.75% per $1 |  |  |  |  |  |
Mizuho Bank [Member] |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Interest Rate Description |  |  |  |  | approximately 0.12% as of December 30, 2016) plus a 0.50% spread, and may be renewed annually (the current line expires on November 21, 2017). |  |  |  |  |
Foreign Exchange [Member] |  |  |  |  |  |  |  |  |  |
Line Of Credit, Current |  |  |  |  | $ 4,300,000 |  |  | $ 4,200,000 |  |

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- Definition Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
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- Definition Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + 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://www.xbrl.org/2003/role/presentationRef -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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Line-of-Credit Arrangement -URI http://asc.fasb.org/extlink&oid=6517033 Reference 3: http://www.xbrl.org/2003/role/presentationRef -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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