Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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Fixed interest rate related to the interest rate derivative.

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Amount of increase in the fair value of derivatives recognized in the income statement.

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Period the derivative contract is outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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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.

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Note 12 - Indebtedness (Details Textual) - USD ($) $ in Thousands		3 Months Ended
	Feb. 01, 2018	Mar. 31, 2019	Mar. 31, 2018
Interest Rate Swap [Member]
Derivative, Notional Amount	$ 20,000	$ 16,400
Derivative, Term of Contract	5 years
Derivative, Fixed Interest Rate	2.70%
Interest Rate Swap [Member] \| Other Assets [Member]
Derivative Asset, Total		175	$ 50
Derivative, Gain on Derivative		239	$ 50
Subsidiary Guarantors [Member] \| Amended and Restated Credit Agreement [Member]
Debt Instrument, Face Amount	$ 70,000
Letters of Credit Outstanding, Amount		$ 700
Debt Instrument, Interest Rate, Effective Percentage		3.50%
Subsidiary Guarantors [Member] \| Amended and Restated Credit Agreement [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate	1.50%
Subsidiary Guarantors [Member] \| Amended and Restated Credit Agreement [Member] \| Prime Rate [Member] \| Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate	0.25%
Subsidiary Guarantors [Member] \| Amended and Restated Credit Agreement [Member] \| Unsecured Term Loan [Member]
Debt Instrument, Face Amount	$ 20,000
Subsidiary Guarantors [Member] \| Amended and Restated Credit Agreement [Member] \| Unsecured Revolving Credit Facility [Member]
Line of Credit Facility, Maximum Borrowing Capacity	$ 50,000
Subsidiary Guarantors [Member] \| Unsecured Revolving Credit Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate	1.00%