Notes Payable to Former Stockholders - Additional Information (Detail) - USD ($) |
3 Months Ended | 6 Months Ended | |||
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Jun. 30, 2015 |
Jun. 30, 2014 |
Jun. 30, 2015 |
Jun. 30, 2014 |
Dec. 31, 2014 |
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| Debt Instrument [Line Items] | |||||
| Accrued interest expense pertaining to Notes | $ 101,000 | $ 101,000 | $ 396,000 | ||
| Interest expense | 386,000 | $ 401,000 | 969,000 | $ 805,000 | |
| Notes Payable to Former Stockholders [Member] | |||||
| Debt Instrument [Line Items] | |||||
| Interest expense | $ 137,000 | $ 151,000 | 281,000 | 303,000 | |
| Principal and interest payments on notes payable to former stockholders | $ 1,500,000 | $ 1,500,000 | |||
| Restricted Stock - Notes Payable [Member] | |||||
| Debt Instrument [Line Items] | |||||
| Unsecured notes interest rate | 5.00% | 5.00% | |||
| Unsecured notes maturity date | Apr. 14, 2020 | ||||
| SARs - Notes Payable [Member] | |||||
| Debt Instrument [Line Items] | |||||
| Unsecured notes interest rate | 5.00% | 5.00% | |||
| Unsecured notes maturity date | Jun. 30, 2020 | ||||
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- Definition Date when the notes payable to former stockholders is scheduled to be fully repaid. No definition available.
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of the required periodic payments including both interest and principal payments. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of the cost of borrowed funds accounted for as interest expense. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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