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Note 6 - Long-term Debt (Details Textual) $ in Thousands |  |  |  |  |  |  | 12 Months Ended |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 01, 2018 USD ($) | Feb. 28, 2017 USD ($) | Feb. 24, 2017 USD ($) | Mar. 08, 2016 USD ($) | Jul. 01, 2014 USD ($) | Jul. 01, 2013 USD ($) | Dec. 31, 2017 USD ($) | Mar. 01, 2018 USD ($)
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months |  |  |  |  |  |  | $ 6,000 |
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 |
Long Term Debt Maturities Repayments of Principal in Year Seven |  |  |  |  |  |  | 1,500 |
Debt Issuance Costs, Gross |  |  |  |  |  |  | $ 100 |
Ratio of Maximum Funded Indebtedness to EBITDA |  |  |  |  |  |  | 4 |
Fixed Charges Numerator |  |  |  |  |  |  | 1.25 |
Derivative, Fixed Interest Rate |  |  |  | 243.00% | 253.00% |  |  |
Derivative, Notional Amount |  |  |  |  | $ 14,300 |  |  |
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 Instruments, Gain Reclassified from Accumulated OCI into Income, Effective Portion |  |  | $ 100 |  |  |  |  |
Interest Rate Swap [Member] | Other Current Liabilities [Member] |  |  |  |  |  |  |  |
Derivative Liability |  |  |  |  |  |  | $ 100 |
Amended Credit Agreement [Member] | Term Loan [Member] |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | $ 42,000 |  | $ 45,000 |  | $ 30,000 |  |
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] |  |  |  |  |  |  |  |
Derivative, Fixed Interest Rate |  |  |  |  |  |  |  | 3.12%
Debt Instrument, Periodic Payment, Principal | $ 3,300 |  |  |  |  |  |  |
Scenario, Forecast [Member] | Interest Rate Swap [Member] |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  |  |  |  |  | $ 18,000
Derivative, Notional Amount, Monthly Reduction Amount |  |  |  |  |  |  |  | $ 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% |
Long-term Line of Credit |  |  |  |  |  |  | $ 0 |
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 |  |  |  |  |  |  | 2.25% |

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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- Definition 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 seventh 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. + References No definition available. + Details
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- Definition 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. + References No definition available. + Details
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- Definition Amount, before accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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- Definition 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. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-04.(a)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24072-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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