Transactions between the Company and Related Parties - Related Party Transactions (Detail) - USD ($) $ in Thousands |
12 Months Ended | |||||||
|---|---|---|---|---|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
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| Related Party Transaction [Line Items] | ||||||||
| Total Sales | $ 70 | $ 191 | $ 53 | |||||
| Inventory [Member] | ||||||||
| Related Party Transaction [Line Items] | ||||||||
| Total Purchases | 5,639 | 5,408 | 5,523 | |||||
| Bridgeview Facility [Member] | ||||||||
| Related Party Transaction [Line Items] | ||||||||
| Rent paid | [1] | 256 | 256 | 251 | ||||
| SL Industries, Ltd [Member] | ||||||||
| Related Party Transaction [Line Items] | ||||||||
| Total Sales | 60 | 6 | 43 | |||||
| SL Industries, Ltd [Member] | Inventory [Member] | ||||||||
| Related Party Transaction [Line Items] | ||||||||
| Total Purchases | 4,470 | 5,364 | 5,337 | |||||
| BGI USA, Inc. [Member] | ||||||||
| Related Party Transaction [Line Items] | ||||||||
| Total Sales | 3 | |||||||
| BGI USA, Inc. [Member] | Inventory [Member] | ||||||||
| Related Party Transaction [Line Items] | ||||||||
| Total Purchases | 7 | 43 | 165 | |||||
| LiftMaster [Member] | ||||||||
| Related Party Transaction [Line Items] | ||||||||
| Total Sales | [2] | 7 | 185 | 10 | ||||
| LiftMaster [Member] | Inventory [Member] | ||||||||
| Related Party Transaction [Line Items] | ||||||||
| Total Purchases | [2] | 46 | $ 1 | $ 21 | ||||
| Lift Ventures LLC [Member] | ||||||||
| Related Party Transaction [Line Items] | ||||||||
| Total Purchases | $ 1,116 | |||||||
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