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Line of Credit - Additional Information (Detail) - USD ($) | 12 Months Ended |
--- | --- | ---
Jan. 31, 2017 | Feb. 28, 2017
Line of Credit Facility [Line Items] |  |
Credit facility, maximum borrowing capacity | $ 10,000,000 |
Line of credit, interest rate description | Any borrowings made under the line of credit would bear interest at a fluctuating variable rate of either (i) the Prime Rate plus an agreed upon margin of between 0% and 0.50%, based upon the consolidated leverage ratio (funded debt EBITDA, as defined); or (ii) the Eurocurrency Rate (LIBOR) plus an agreed-upon margin of between 1.00% and 1.50%, based upon the consolidated leverage ratio. |
Borrowings against new line of credit | $ 0 |
Fixed Charge Coverage Ratio | 3.00% |
Funded debt to adjusted EBITDA ratio | 1.25% |
Prime Rate [Member] | Minimum [Member] |  |
Line of Credit Facility [Line Items] |  |
Percentage above rate | 0.00% |
Prime Rate [Member] | Maximum [Member] |  |
Line of Credit Facility [Line Items] |  |
Percentage above rate | 0.50% |
London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member] |  |
Line of Credit Facility [Line Items] |  |
Percentage above rate | 1.00% |
London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member] |  |
Line of Credit Facility [Line Items] |  |
Percentage above rate | 1.50% |
Revolving Credit Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Line of credit expire date | Aug. 30, 2017 |
Subsequent Event [Member] | Revolving Credit Facility [Member] | Bank of America, N.A. [Member] |  |
Line of Credit Facility [Line Items] |  |
Credit facility, maximum borrowing capacity |  | $ 10,000,000

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- Definition Funded Debt to Adjusted EBITDA Ratio + References No definition available. + Details
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- 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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- Definition Average amount borrowed under the credit facility during the period. + References No definition available. + Details
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Balance Type: | credit
Period Type: | duration

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- Definition Date the credit facility terminates, in CCYY-MM-DD format. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions). + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- 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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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