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Stock-Based Compensation - Stock Option Activity (Details) - USD ($) | 9 Months Ended
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Nov. 03, 2018 | Oct. 28, 2017
Number of Shares |  |
Options granted | 153,888 | 30,000
Employee Stock Plan, 2006 Plan and 2016 Plan |  |
Number of Shares |  |
Outstanding options at beginning of year | 1,195,910 |
Options granted | 153,888 |
Options expired and canceled | (366,626) |
Outstanding options at end of quarter | 983,172 |
Options exercisable at end of quarter | 829,284 |
Weighted-average exercise price per option |  |
Outstanding options at beginning of year | $ 4.80 |
Options granted | 2.48 |
Options expired and canceled | 4.73 |
Outstanding options at end of quarter | 4.49 |
Options exercisable at end of quarter | $ 4.87 |
Weighted-average remaining contractual term |  |
Outstanding options at end of quarter | 5 years 1 month 6 days |
Options exercisable at end of quarter | 4 years 3 months 18 days |
Aggregate Intrinsic Value |  |
Outstanding options at beginning of year | $ 21,750 |
Options expired and canceled | 2,000 |
Outstanding options at end of quarter | 144,396 |
Options exercisable at end of quarter | $ 26,308 |

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Weighted average price of options that were either forfeited or expired. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3)-(4) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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