Exercisable period of warrants.

No definition available.

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- Definition

Line Of Credit Facility, Covenant, Minimum Adjusted Quick Ratio Required for Compliance

+ References

No definition available.

+ Details

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- Definition

Line of Credit Facility, Increase in Maximum Borrowing Capacity, Under Election

+ References

No definition available.

+ Details

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- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 4
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-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.1)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(4))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

+ Details

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Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(i)(2))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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Period Type:	instant

- Definition

Face amount or stated value per share of common stock.

+ References

+ Details

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Balance Type:	na
Period Type:	instant

- Definition

The amount of a specific compensating balance arrangement that is maintained under an agreement for a bank loan or future credit availability.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Date the credit facility terminates, in CCYY-MM-DD format.

+ References

+ Details

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Period Type:	duration

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

+ Details

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Period Type:	instant

- 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

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
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Period Type:	instant

- Definition

The cash inflow from the additional capital contribution to the entity.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

+ Details

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- Definition

Number of new stock issued during the period.

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- Details

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- Details

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The Company and Basis of Presentation - Liquidity (Details)			1 Months Ended	6 Months Ended
	May 29, 2018 USD ($) $ / shares shares	Aug. 31, 2017 USD ($)	Mar. 31, 2017 USD ($) $ / shares shares	Jul. 01, 2018 USD ($) $ / shares	Jul. 02, 2017 USD ($)	Dec. 31, 2017 USD ($) $ / shares	Jan. 01, 2017 USD ($)
Liquidity [Line Items]
Cash and cash equivalents				$ 22,815,000	$ 22,234,000	$ 16,527,000	$ 14,870,000
Revolving line of credit				$ 6,000,000		$ 6,000,000
Share price (in dollars per share) \| $ / shares	$ 1.15		$ 1.50	$ 1.15
Common stock, par value (in dollars per share) \| $ / shares	$ 0.001		$ 0.001	$ 0.001		$ 0.001
Exercisable period of warrants	60 months
Warrants exercise price per share \| $ / shares	$ 1.38
Net proceeds from issuance of common stock	$ 13,900,000		$ 15,200,000	$ 15,855,000	$ 17,304,000
Common stock
Liquidity [Line Items]
Shares of common stock issued (in shares) \| shares	13,500,000		11,300,000
Common stock \| Maximum
Liquidity [Line Items]
Warrants to purchase aggregate shares of common stock \| shares	5,400,000
Revolving line of credit \| Silicon Valley Bank
Liquidity [Line Items]
Cash and cash equivalents in available credit				6,000,000
Revolving line of credit				$ 6,000,000
Expiration date				Sep. 24, 2018
Unrestricted cash or cash equivalents (at least)		$ 6,000,000
Long-term portion of obligations (at least)		1.40
Loan advances		$ 6,000,000
Loan advances subject to increase		$ 12,000,000