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Acquisitions - Additional Information (Detail) |  |  | 9 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Sep. 28, 2017 USD ($) Aircraft | Feb. 01, 2017 USD ($) | Feb. 01, 2017 DKK | Oct. 28, 2017 USD ($) | Jan. 31, 2017 USD ($) | Feb. 01, 2017 DKK
Business Acquisition [Line Items] |  |  |  |  |  |
Initial upfront payment in cash |  |  |  | $ 14,873,000 |  |
Current Portion of Royalty Obligation |  |  |  | 500,000 |  |
Royalty obligation reported as long-term liability |  |  |  | 8,200,000 |  |
Goodwill |  |  |  | $ 12,441,000 | $ 4,521,000 |
Contingent Consideration Liability [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Fair value key assumptions |  |  |  | Key assumptions in estimating the fair value of the contingent consideration liability include (1) the estimated earnout targets over the next seven years of $407,000–$1,280,000, (2) the probability of success (achievement of the various contingent events) from 1.6%–87.2% and (3) a risk-adjusted discount rate of approximately 1.77%–3.35% used to adjust the probability-weighted earnout payments to their present value. |  |
Estimated target period |  |  |  | 7 years |  |
Estimated earnout targets |  | $ 1,280,000 |  | $ 1,400,000 |  |
Estimated earnout targets |  | 407,000 |  | $ 400,000 |  |
Intangible Assets [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Internal rate of return |  |  |  | 19.00% |  |
Fair value key assumptions |  |  |  | Key assumptions in estimating the fair value of the intangibles include (1) remaining life of existing technology acquired based on estimate of percentage of revenue from 0% – 100% for each product, (2) the Company’s internal rate of return of 19.0% and (3) a range of earnings projections from $121,000 – $1,070,000. |  |
Intangible Assets [Member] | Contingent Consideration Liability [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Estimated target period |  |  |  | 7 years |  |
TrojanLabel ApS [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Purchase price of acquisition |  | 9,100,000 | DKK 62,900,000 |  |  |
Purchase price of acquisition amount held in escrow |  | 900,000 |  |  |  | DKK 6,400,000
Cash acquired from acquisition |  | $ 100,000 | DKK 976,000 |  |  |
Additional contingent consideration period |  | 7 years | 7 years |  |  |
General and administrative expense |  |  |  | $ 0.7 |  |
Goodwill |  | $ 7,388,000 |  |  |  |
TrojanLabel ApS [Member] | General and Administrative Expense [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
General and administrative expense |  |  |  | 0.1 | $ 0.6 |
TrojanLabel ApS [Member] | Earn-Out Payments, if 80% of Specified Earnings Targets are Achieved [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Minimum percentage required to entitle additional contingent consideration |  | 80.00% | 80.00% |  |  |
Business acquisition contingent consideration potential earn-out payments |  | $ 5,000,000 |  |  |  | 32,500,000
TrojanLabel ApS [Member] | Earn-Out Payments, if 100% of Specified Earnings Targets are Achieved [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Minimum percentage required to entitle additional contingent consideration |  | 100.00% | 100.00% |  |  |
Business acquisition contingent consideration potential earn-out payments |  | $ 5,800,000 |  |  |  | 40,600,000
TrojanLabel ApS [Member] | Earn-Out Payments, if 120% of Specified Earnings Targets are Achieved [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Minimum percentage required to entitle additional contingent consideration |  | 120.00% | 120.00% |  |  |
Business acquisition contingent consideration potential earn-out payments |  | $ 7,000,000 |  |  |  | DKK 48,700,000
Honeywell Asset Purchase and License Agreement [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Number of aircraft families | Aircraft | 2 |  |  |  |  |
Initial upfront payment in cash | $ 14,600,000 |  |  |  |  |
Minimum royalty payments | $ 15,000,000 |  |  | $ 15,000,000 |  |
Minimum royalty payment term | 10 years |  |  |  |  |
Present value factor |  |  |  | 2.80% |  |
Current Portion of Royalty Obligation |  |  |  | $ 500,000 |  |
Royalty obligation reported as long-term liability |  |  |  | $ 8,200,000 |  |
Transaction costs incurred as part of purchase price | $ 273,000 |  |  |  |  |
Additional payment made subject to completion of the terms of the TSA | $ 400,000 |  |  |  |  |
Internal rate of return | 21.00% |  |  |  |  |
Amortization period of intangibles | 10 years |  |  |  |  |
Honeywell Asset Purchase and License Agreement [Member] | Amended Credit Agreement with Bank Of America [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Initial upfront payment in cash | $ 14,600,000 |  |  |  |  |
Minimum [Member] | Contingent Consideration Liability [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Probability of success |  | 1.60% | 1.60% | 0.00% |  |
Fair value assumptions, risk-adjusted discount rate |  | 1.77% | 1.77% | 1.58% |  |
Minimum [Member] | Intangible Assets [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Fair value assumptions, Annual earnings projections |  |  |  | $ 121,000 |  |
Percentage of revenue on existing technology |  |  |  | 0.00% |  |
Minimum [Member] | Honeywell Asset Purchase and License Agreement [Member] | Intangible Assets [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Fair value assumptions, Annual earnings projections | 3,900,000 |  |  |  |  |
Maximum [Member] | Contingent Consideration Liability [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Probability of success |  | 87.20% | 87.20% | 46.80% |  |
Fair value assumptions, risk-adjusted discount rate |  | 3.35% | 3.35% | 2.76% |  |
Maximum [Member] | Intangible Assets [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Fair value assumptions, Annual earnings projections |  |  |  | $ 1,070,000 |  |
Percentage of revenue on existing technology |  |  |  | 100.00% |  |
Maximum [Member] | Honeywell Asset Purchase and License Agreement [Member] | Intangible Assets [Member] |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Fair value assumptions, Annual earnings projections | $ 5,400,000 |  |  |  |  |

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