Line of credit facility additional borrowing capacity

No definition available.

Name:	ifon_LineOfCreditFacilityAdditionalBorrowingCapacity
Namespace Prefix:	ifon_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Line of credit facility advance rate against accounts receivable percentage.

+ References

No definition available.

+ Details

Name:	ifon_LineOfCreditFacilityAdvanceRateAgainstAccountsReceivablePercentage
Namespace Prefix:	ifon_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line of credit facility advance rate against deposits percentage.

+ References

No definition available.

+ Details

Name:	ifon_LineOfCreditFacilityAdvanceRateAgainstDepositsPercentage
Namespace Prefix:	ifon_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Line of Credit Facility Amount Available to Borrow

+ References

No definition available.

+ Details

Name:	ifon_LineOfCreditFacilityAmountAvailableToBorrow
Namespace Prefix:	ifon_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

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

+ 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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

- 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

+ Details

Name:	us-gaap_LineOfCreditFacilityInterestRateDescription
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
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

Name:	us-gaap_LineOfCreditFacilityLineItems
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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

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

- Details

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Namespace Prefix:
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- Details

Name:	us-gaap_LineOfCreditFacilityAxis=ifon_SiliconValleyBankMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_DomesticLineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_VariableRateAxis=us-gaap_PrimeRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_ForeignLineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix:
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Balance Type:
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- Details

Name:	us-gaap_CreditFacilityAxis=ifon_MexicanPesoDepositsMember
Namespace Prefix:
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Balance Type:
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Line of Credit - Additional Information (Detail) - USD ($)		9 Months Ended
	Mar. 27, 2014	Sep. 30, 2016	Oct. 06, 2016	Aug. 23, 2016	Aug. 04, 2015
Line of Credit Facility [Line Items]
Amounts drawn against the Credit Facility		$ 640,000
Agreement [Member] \| Silicon Valley Bank [Member]
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 2,000,000			$ 3,000,000	$ 7,000,000
Line of credit facility, interest rate description		Borrowings under the Credit Facility bear interest based on the face amount of the financed receivables at the prime rate plus 4.5% for domestic receivables and 3.53% for foreign receivables.
Amounts drawn against the Credit Facility		$ 640,000
Line of credit facility available		$ 2,360,000
Credit facility maturity date		Sep. 27, 2017
Agreement [Member] \| Silicon Valley Bank [Member] \| Domestic receivables [Member]
Line of Credit Facility [Line Items]
Eligible accounts receivable, advance rate	80.00%
Agreement [Member] \| Silicon Valley Bank [Member] \| Domestic receivables [Member] \| Prime rate [Member]
Line of Credit Facility [Line Items]
Credit Facility interest rate	4.50%
Agreement [Member] \| Silicon Valley Bank [Member] \| Foreign receivables [Member]
Line of Credit Facility [Line Items]
Eligible accounts receivable, advance rate	70.00%
Agreement [Member] \| Silicon Valley Bank [Member] \| Foreign receivables [Member] \| Prime rate [Member]
Line of Credit Facility [Line Items]
Credit Facility interest rate	3.53%
Agreement [Member] \| Subsequent Event [Member] \| Silicon Valley Bank [Member]
Line of Credit Facility [Line Items]
Line of credit facility, addition of sublimit			$ 2,000,000
Agreement [Member] \| Subsequent Event [Member] \| Silicon Valley Bank [Member] \| Mexican Peso Deposits [Member]
Line of Credit Facility [Line Items]
Advance rate against deposits			70.00%