Represents the number of customers.

No definition available.

Name:	ilink_NumberOfCustomers
Namespace Prefix:	ilink_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5074-111524

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.4)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_AllowanceForDoubtfulAccountsReceivable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- 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

Name:	us-gaap_ConcentrationRiskLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6351-108592

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13531-108611

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=84177426&loc=d3e6404-108592

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=77997519&loc=d3e13537-108611

+ Details

Name:	us-gaap_ConcentrationRiskPercentage1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Long-lived assets other than financial instruments, long-term customer relationships of a financial institution, mortgage and other servicing rights, deferred policy acquisition costs, and deferred tax assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=68060357&loc=d3e9038-108599

+ Details

Name:	us-gaap_NoncurrentAssets
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfOperatingSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 32
-Paragraph 2A
-URI http://asc.fasb.org/extlink&oid=82859839&loc=SL82860478-203043

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130539-203045

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130543-203045

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130545-203045

+ Details

Name:	us-gaap_RevenueFromContractWithCustomerIncludingAssessedTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

SIGNIFICANT CUSTOMERS, CONCENTRATION OF CREDIT RISK AND GEOGRAPHIC INFORMATION (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018 USD ($) segment customer	Mar. 31, 2017 USD ($)	Dec. 31, 2017 USD ($) customer
Significant Customers, Concentration of Credit Risk and Geographic Information
Number of operating segments \| segment	1
Revenue, net	$ 2,573	$ 2,884
Allowance for doubtful accounts	$ 0		$ 32
Net revenue \| Customer Concentration Risk \| Customer A
Significant Customers, Concentration of Credit Risk and Geographic Information
Concentration risk (as a percent)	17.00%	16.00%
Net revenue \| Customer Concentration Risk \| Customer B
Significant Customers, Concentration of Credit Risk and Geographic Information
Concentration risk (as a percent)	16.00%	12.00%
Net revenue \| Customer Concentration Risk \| Customer C
Significant Customers, Concentration of Credit Risk and Geographic Information
Concentration risk (as a percent)	14.00%	12.00%
Net revenue \| Customer Concentration Risk \| Customer F
Significant Customers, Concentration of Credit Risk and Geographic Information
Concentration risk (as a percent)		17.00%
Net revenue \| Geographic Concentration Risk
Significant Customers, Concentration of Credit Risk and Geographic Information
Revenue, net	$ 2,573	$ 2,884
Net revenue \| Geographic Concentration Risk \| United states
Significant Customers, Concentration of Credit Risk and Geographic Information
Revenue, net	1,262	1,226
Net revenue \| Geographic Concentration Risk \| Asia and Middle East
Significant Customers, Concentration of Credit Risk and Geographic Information
Revenue, net	1,114	1,157
Net revenue \| Geographic Concentration Risk \| Europe and other
Significant Customers, Concentration of Credit Risk and Geographic Information
Revenue, net	$ 197	$ 501
Accounts receivable \| Credit Concentration Risk
Significant Customers, Concentration of Credit Risk and Geographic Information
Number of customers \| customer	4		3
Accounts receivable \| Credit Concentration Risk \| Customer One
Significant Customers, Concentration of Credit Risk and Geographic Information
Concentration risk (as a percent)	32.00%		35.00%
Accounts receivable \| Credit Concentration Risk \| Customer Two
Significant Customers, Concentration of Credit Risk and Geographic Information
Concentration risk (as a percent)	13.00%		10.00%
Accounts receivable \| Credit Concentration Risk \| Customer Three
Significant Customers, Concentration of Credit Risk and Geographic Information
Concentration risk (as a percent)	13.00%		15.00%
Accounts receivable \| Credit Concentration Risk \| Customer Four
Significant Customers, Concentration of Credit Risk and Geographic Information
Concentration risk (as a percent)	10.00%
Assets \| Geographic Concentration Risk
Significant Customers, Concentration of Credit Risk and Geographic Information
Total long-lived assets	$ 723		$ 594
Assets \| Geographic Concentration Risk \| United states
Significant Customers, Concentration of Credit Risk and Geographic Information
Total long-lived assets	115		103
Assets \| Geographic Concentration Risk \| Asia
Significant Customers, Concentration of Credit Risk and Geographic Information
Total long-lived assets	$ 608		$ 491
Maximum \| Net revenue \| Customer Concentration Risk \| Customer D
Significant Customers, Concentration of Credit Risk and Geographic Information
Concentration risk (as a percent)	10.00%