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Commitments - Additional Information (Detail) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013
Schedule Of Commitments And Contingencies [Line Items] |  |  |
Rent Expense | $ 947 | $ 1,012 | $ 939
Hannibal, Missouri |  |  |
Schedule Of Commitments And Contingencies [Line Items] |  |  |
Long Term Ground Leases Expiration Period |  | 20 years | 20 years
Marsing |  |  |
Schedule Of Commitments And Contingencies [Line Items] |  |  |
Long Term Ground Leases Expiration Period |  | 25 years | 25 years
Vehicle Lease |  |  |
Schedule Of Commitments And Contingencies [Line Items] |  |  |
Rent Expense | $ 435 | $ 442 | $ 334
Minimum | Axis, Alabama |  |  |
Schedule Of Commitments And Contingencies [Line Items] |  |  |
Long Term Ground Leases Expiration Period | 20 years |  |
Maximum | Axis, Alabama |  |  |
Schedule Of Commitments And Contingencies [Line Items] |  |  |
Long Term Ground Leases Expiration Period | 35 years |  |

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- Definition Lease Expiration Period + References No definition available. + Details
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- Definition Schedule Of Commitments And Contingencies [Line Items] + References No definition available. + Details
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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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- Details
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Namespace Prefix: |
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- Details
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- Details
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- Details
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- Details
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- Details
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