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Note 11 - Related Party Transactions (Details Textual) - USD ($)	1 Months Ended	3 Months Ended
	Jan. 31, 2019	Mar. 31, 2020	Mar. 31, 2019	Jul. 01, 2019	Dec. 31, 2018
Legal Fees		$ 0	$ 8,000
Due to Related Parties, Noncurrent, Total		1,100,000			$ 1,600,000
Interest Expense, Related Party		15,000	16,000
CTI Europe [Member]
Long-term Debt, Gross		$ 9,000	$ 14,000
Schwan Incorporated [Member]
Due to Related Parties, Noncurrent, Total				$ 1,300,000
Conversion of Related Party Debt to Equity [Member]
Debt Conversion, Original Debt, Amount	$ 600,000

X

- Definition

The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

+ References

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-Publisher FASB
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-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
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X

- 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

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-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
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- Definition

Portion of the carrying amount as of the balance sheet date of obligations due all related parties that is payable after one year or beyond the normal operating cycle if longer.

+ References

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-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(k)(1))
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X

- Definition

Amount of interest expense incurred on a debt or other obligation to related party.

+ References

No definition available.

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X

- Definition

The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings.

+ References

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