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Note 12 - Long Term Debt (Details Textual) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Jun. 30, 2020	Mar. 31, 2018 USD ($)	Jan. 31, 2018 USD ($)
Term Loan [Member]
Line of Credit Facility, Interest Rate at Period End	8.40%
Senior Secured Credit Facility [Member]
Debt Instrument, Quarterly Payment, Current Year				$ 400
Debt Instrument Quarterly Payment Next Year				600
Debt Instrument, Quarterly Payment, Thereafter				$ 800
Percentage of Consolidated Excess Cash Flow				50.00%
Excess Cash Flow Payment	$ 4,000
Excess Cash Flow Payment, Tranche Two		$ 4,000
Excess Cash Flow Payment, Tranche One		1,000
Limitation On Pledges of Capital Stock of Foreign Subsidiaries	65.00%
Senior Secured Credit Facility [Member] | Maximum [Member]
Debt Instrument, Leverage Ratio	3.5
Senior Secured Credit Facility [Member] | Maximum [Member] | Forecast [Member]
Debt Instrument, Leverage Ratio			3.25
Senior Secured Credit Facility [Member] | Base Rate [Member]
Debt Instrument, Basis Spread on Variable Rate	4.75%
Senior Secured Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate	6.25%
Senior Secured Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]
Debt Instrument, Interest Rate, Stated Percentage	1.25%
Senior Secured Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]
Debt Instrument, Interest Rate, Stated Percentage	4.25%
Senior Secured Credit Facility [Member] | Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity					$ 25,000
Line of Credit Facility, Remaining Borrowing Capacity	$ 4,600
Term Loan [Member]
Long-term Debt, Gross	$ 50,168	$ 54,997
Term Loan [Member] | Senior Secured Credit Facility [Member]
Long-term Debt, Gross					$ 64,000

X

- Definition

Represents the leverage ratio under a debt agreement.

+ References

No definition available.

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X

- Definition

Amount of the required quarterly payments including both interest and principal payments for the current fiscal year.

+ References

No definition available.

+ Details

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X

- Definition

Amount of the required quarterly payments including both interest and principal payments for the current fiscal year.

+ References

No definition available.

+ Details

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X

- Definition

Amount of the required quarterly payments including both interest and principal payments thereafter

+ References

No definition available.

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X

- Definition

The amount of excess cash flow payment.

+ References

No definition available.

+ Details

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X

- Definition

The first tranche of excess cash flow payment.

+ References

No definition available.

+ Details

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X

- Definition

The second tranche of excess cash flow payment.

+ References

No definition available.

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X

- Definition

Limitation on pledges of capital stock of foreign subsidiaries.

+ References

No definition available.

+ Details

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X

- Definition

The percentage of consolidated excess cash flow.

+ References

No definition available.

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X

- Definition

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

+ References

No definition available.

+ Details

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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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
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X

- Definition

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

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X

- Definition

The effective interest rate at the end of the reporting period.

+ References

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X

- 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
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X

- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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