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Debt - Additional Information (Detail) - USD ($) |  | 9 Months Ended |  |  |
--- | --- | --- | --- | --- | ---
Nov. 30, 2017 | Oct. 28, 2017 | May 01, 2017 | Apr. 29, 2017 | Feb. 28, 2017
Credit Agreement Amendment [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Stock repurchase authorized amount |  |  | $ 12,000,000 | $ 5,000,000 |
Term Loan [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Credit facility, maximum borrowing capacity |  | $ 8,648,000 |  |  |
LIBOR [Member] | Revolving Credit Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate |  | 1.00% |  |  |
Federal Funds Effective Swap Rate [Member] | Revolving Credit Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate |  | 0.50% |  |  |
Minimum [Member] | Subsequent Event [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate | 0.00% |  |  |  |
Minimum [Member] | Revolving Credit Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Percentage added to variable rate |  | 0.00% |  |  |
Minimum [Member] | LIBOR [Member] | Revolving Credit Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate |  | 1.00% |  |  |
Minimum [Member] | LIBOR [Member] | Term Loan [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate |  | 1.00% |  |  |
Maximum [Member] | Subsequent Event [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate | 0.50% |  |  |  |
Maximum [Member] | Revolving Credit Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Percentage added to variable rate |  | 0.50% |  |  |
Maximum [Member] | LIBOR [Member] | Revolving Credit Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate |  | 1.50% |  |  |
Maximum [Member] | LIBOR [Member] | Term Loan [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Interest rate |  | 1.50% |  |  |
Bank of America, N.A. [Member] | Revolving Credit Facility [Member] | Subsequent Event [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Principal amount of debt | $ 15,000,000 |  |  |  |
Bank of America, N.A. [Member] | Term Loan [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Credit facility, maximum borrowing capacity |  |  |  |  | $ 9,200,000
Bank of America, N.A. [Member] | Term Loan [Member] | Subsequent Event [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Principal amount of debt | $ 15,000,000 |  |  |  |

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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 Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + 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 Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=64930739&loc=d3e28878-108400 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28551-108399 + Details
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