The value of equity issued in the conversion of notes receivable.

No definition available.

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- Definition

Sub limit 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

No definition available.

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- Definition

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

+ References

No definition available.

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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

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- 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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-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

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- Definition

The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3213-108585

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- Definition

Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders.

+ References

No definition available.

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- Definition

Value of stock issued in lieu of cash for services contributed to the entity. Value of the stock issued includes, but is not limited to, services contributed by vendors and founders.

+ References

No definition available.

+ Details

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Note 16 - Subsequent Events (Details Textual) - USD ($)			1 Months Ended	12 Months Ended
Note 16 - Subsequent Events (Details Textual) - USD ($)	Mar. 13, 2019	Jan. 14, 2019	Mar. 17, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Stock Issued During Period, Shares, Issued for Services				1,844	63,602	25,811
Stock Issued During Period, Value, Issued for Services					$ 455,000	$ 308,000
Subsequent Event [Member]
Conversion of Notes Receivable, Equity Issued			$ 655,000
Subsequent Event [Member] \| VPS [Member]
Equity Method Investment, Ownership Percentage			20.00%
Payments to Acquire Equity Method Investments			$ 345,000
Subsequent Event [Member] \| CUI Inc And CUI Canada [Member] \| Bank of America [Member] \| Revolving Credit Facility [Member]
Debt Instrument, Term	2 years
Line of Credit Facility, Sub Limit Borrowing Capacity	$ 3,000,000
Line of Credit Facility, Maximum Borrowing Capacity	$ 10,000,000
Subsequent Event [Member] \| CUI Inc And CUI Canada [Member] \| Bank of America [Member] \| Revolving Credit Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate	2.00%
Subsequent Event [Member] \| Three Independent Board Members [Member]
Stock Issued During Period, Shares, Issued for Services		29,067
Stock Issued During Period, Value, Issued for Services		$ 38,000