Equity Method Investment, Ownership Percentage Held By Third Party

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- Definition

Percentage Of Proceeds From Certain Asset Sales Required To Pay Down Term Loan

+ References

No definition available.

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- Definition

Short And Long-Term Debt Instrument [Line Items]

+ References

No definition available.

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- Definition

Short Term Debt Period With Interest Only Payment

+ References

No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ 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(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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Period Type:	instant

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400

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-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399

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Balance Type:	credit
Period Type:	instant

- Definition

Description of the frequency of periodic payments (monthly, quarterly, annual).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-Subparagraph (c)
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-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

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- Definition

Amount of the required periodic payments including both interest and principal payments.

+ References

+ Details

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

- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 20
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-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions 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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Period Type:	instant

- 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

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Balance Type:	credit
Period Type:	instant

- 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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- Definition

The portion of the carrying amount of short-term borrowings outstanding as of the balance sheet date which accrues interest at a set, unchanging rate.

+ References

No definition available.

+ Details

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Short And Long-Term Debt (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Short And Long-Term Debt Instrument [Line Items]
Interest expense	$ 177,000	$ 135,000	$ 548,000	$ 387,000
International Credit [Member]
Short And Long-Term Debt Instrument [Line Items]
Credit facility, outstanding balance	1,256,000		1,256,000		$ 1,243,000
Credit facility, available borrowing capacity	524,000		524,000		455,000
Domestic Term-Loan [Member]
Short And Long-Term Debt Instrument [Line Items]
Loan amount	6,000,000		6,000,000
Quarterly installments			$ 250,000
Percentage of proceeds from certain asset sales required to pay down term loan			100.00%
Debt	4,500,000		$ 4,500,000		5,250,000
Note Payable [Member]
Short And Long-Term Debt Instrument [Line Items]
Debt	2,000,000		2,000,000		$ 2,000,000
Revolving Credit Facility [Member]
Short And Long-Term Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 9,000,000		$ 9,000,000
Weighted average interest rate of debt instruments	7.11%		7.11%		4.82%
Credit facility, outstanding balance	$ 1,755,000		$ 1,755,000		$ 3,218,000
Credit facility, available borrowing capacity	5,632,000		5,632,000		$ 5,121,000
Letters Of Credit [Member]
Short And Long-Term Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity	$ 200,000		$ 200,000
International Credit Facility [Member]
Short And Long-Term Debt Instrument [Line Items]
Weighted average interest rate of debt instruments	3.95%		3.95%		3.50%
International Credit Facility [Member] \| Minimum [Member]
Short And Long-Term Debt Instrument [Line Items]
Interest rate of debt instruments	0.75%		0.75%
International Credit Facility [Member] \| Maximum [Member]
Short And Long-Term Debt Instrument [Line Items]
Interest rate of debt instruments	2.50%		2.50%
Hearing Help Express (HHE) [Member] \| Note Payable [Member]
Short And Long-Term Debt Instrument [Line Items]
Debt	$ 2,000,000		$ 2,000,000
Debt instrument, frequency of periodic payment, months			P48M
Ownership percentage held by third party			80.00%
Notes payable, interest rate	5.00%		5.00%
Interest only payment term			12 months