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

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Monthly reduction from the notional amount of the derivative.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the sixth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Represents the ratio of maximum funded indebtedness to EBITDA.

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

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Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Fixed interest rate related to the interest rate derivative.

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The effective portion of gain reclassified from accumulated other comprehensive income into income on derivative instruments designated and qualifying as hedging instruments.

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Fair value, after the effects of master netting arrangements, of a financial liability or 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 liabilities not subject to a master netting arrangement and not elected to be offset.

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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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The fee, expressed as a percentage of the line of credit facility, for the line of credit facility regardless of whether the facility has been used.

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Period remaining on line of credit facility before it terminates, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Note 2 - Long-term Debt (Details Textual) $ in Thousands						3 Months Ended	12 Months Ended
Note 2 - Long-term Debt (Details Textual) $ in Thousands	Jul. 01, 2018 USD ($)	Feb. 28, 2017 USD ($)	Feb. 24, 2017 USD ($)	Mar. 08, 2016 USD ($)	Jul. 01, 2014 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2017	Mar. 01, 2018 USD ($)	Mar. 07, 2016 USD ($)
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months						$ 6,000
Long Term Debt Maturities Repayments of Principal in Year Six						1,500
Debt Issuance Costs, Gross						$ 100
Ratio of Maximum Funded Indebtedness to EBITDA						4
Fixed Charges Numerator						1.25
Derivative, Fixed Interest Rate				2.43%	2.53%			3.12%
Derivative, Notional Amount					$ 14,300
Long-term Debt, Maturities, Repayments of Principal in Year Two						$ 6,000
Long-term Debt, Maturities, Repayments of Principal in Year Three						6,000
Long-term Debt, Maturities, Repayments of Principal in Year Four						6,000
Long-term Debt, Maturities, Repayments of Principal in Year Five						6,000
Per Month through July 1, 2015 [Member]
Debt Instrument, Periodic Payment, Principal					200
Per Month through June 1, 2018 [Member]
Debt Instrument, Periodic Payment, Principal					$ 300
Interest Rate Swap [Member]
Derivative, Notional Amount						18,000		$ 18,000
Derivative Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion			$ 100
Derivative, Notional Amount, Monthly Reduction Amount								$ 300
Interest Rate Swap [Member] \| Other Current Liabilities [Member]
Derivative Liability, Total						$ 100
Amended Credit Agreement [Member] \| Term Loan [Member]
Debt Instrument, Face Amount		$ 42,000		$ 45,000
Amended Credit Agreement [Member] \| Term Loan [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate				0.85%
Scenario, Forecast [Member]
Debt Instrument, Periodic Payment, Principal	$ 3,300
Revolving Credit Facility [Member] \| Amended Credit Agreement [Member]
Line of Credit Facility, Expiration Period		7 years		5 years
Line of Credit Facility, Maximum Borrowing Capacity		$ 35,000		$ 20,000					$ 15,000
Line of Credit Facility, Commitment Fee Percentage						0.10%	0.10%
Letters of Credit Outstanding, Amount						$ 0
Add on Credit Facility [Member] \| London Interbank Offered Rate (LIBOR) [Member]
Debt Instrument, Basis Spread on Variable Rate		0.75%		0.85%
Debt Instrument, Interest Rate, Stated Percentage						2.56%