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Note 2 - Long-term Debt (Details Textual) - USD ($) $ in Thousands								6 Months Ended	12 Months Ended
	Nov. 01, 2019	Jul. 01, 2018	May 02, 2018	Feb. 28, 2017	Feb. 24, 2017	Mar. 08, 2016	Jul. 01, 2014	Oct. 31, 2019	Dec. 31, 2017	Sep. 30, 2018	May 01, 2018	Mar. 01, 2018	Mar. 07, 2016
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months										$ 6,000
Long Term Debt Maturities Repayments of Principal in Year Seven			$ 3,050							1,500
Derivative, Fixed Interest Rate						2.43%	2.53%					3.12%
Derivative, Notional Amount							$ 14,300
Debt Instrument, Periodic Payment, Principal		$ 3,300
Stockholders' Equity Attributable to Parent, Ending Balance									$ 124,968	150,709
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
Long Term Debt Maturities Repayments of Principal in Year Six										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] \| Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Stockholders' Equity Attributable to Parent, Ending Balance										100
Interest Rate Swap [Member] \| Other Current Liabilities [Member]
Derivative, Notional Amount			17,500
Derivative Liability, Total			100
Interest Rate Swap [Member] \| Prepaid Expenses and Other Current Assets [Member]
Derivative Asset, Total										200
Credit Agreement [Member]
Debt Issuance Costs, Gross										$ 100
Credit Agreement [Member] \| Term Loan 2 [Member]
Debt Instrument, Face Amount			$ 85,000
Debt Instrument, Interest Rate, Effective Percentage										3.11%
Debt Instrument, Commitment Fee			0.25%
Credit Agreement [Member] \| Term Loan [Member]
Debt Instrument, Face Amount			$ 42,000
Debt Instrument, Interest Rate, Effective Percentage										2.86%
Credit Agreement [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Term Loan 2 [Member]
Debt Instrument, Basis Spread on Variable Rate			0.93%
Credit Agreement [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Term Loan [Member]
Debt Instrument, Basis Spread on Variable Rate			0.68%
Amended and Restated Credit Agreement [Member]
Debt Issuance Costs, Gross										$ 200
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] \| Credit Agreement [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Term Loan [Member]
Debt Instrument, Basis Spread on Variable Rate								1.50%
Scenario, Forecast [Member] \| Amended and Restated Credit Agreement After 18 Months [Member] \| London Interbank Offered Rate (LIBOR) [Member] \| Term Loan [Member]
Debt Instrument, Basis Spread on Variable Rate	1.75%
Revolving Credit Facility [Member] \| Credit Agreement [Member] \| Fifth Third Bank [Member]
Line of Credit Facility, Maximum Borrowing Capacity											$ 35,000
Revolving Credit Facility [Member] \| Credit Agreement [Member] \| BB&T [Member]
Line of Credit Facility, Maximum Borrowing Capacity			$ 75,000
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage			0.10%
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%