Commitments and Contingencies - Additional Information Credit Agreement (Detail) - USD ($) |
3 Months Ended | 9 Months Ended | |||
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Sep. 30, 2018 |
Sep. 30, 2017 |
Sep. 30, 2018 |
Sep. 30, 2017 |
Dec. 31, 2017 |
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| Line of Credit Facility [Line Items] | |||||
| Senior secured revolving credit facility maximum borrowing capacity | $ 60,000,000 | $ 60,000,000 | |||
| Revolving credit facility maturity date | Jun. 01, 2020 | ||||
| Date the Company entered into a Credit Agreement | Jun. 18, 2014 | ||||
| Credit agreement date | Jun. 01, 2014 | ||||
| Standby letters of credit borrowing capacity | 10,000,000 | $ 10,000,000 | |||
| Standby letters of credit, utilized amount | $ 533,000 | $ 533,000 | |||
| Credit facility interest rate description | Credit Facility will bear interest, at the Company's option, at either the (i) Base Rate (defined as the highest of (a) the Bank's prime rate, (b) the Federal Funds Rate plus 1.5% and (c) one-monthLIBOR plus 1.5%), or (ii) at a variable rate between 0.875% and 1.125% above LIBOR, based upon the total funded debt to EBITDA ratio. | ||||
| LIBOR rate duration period | 1 month | ||||
| Credit agreement, unused capacity, commitment fee percentage | 0.10% | ||||
| Interest expense | $ 342,000 | $ 370,000 | $ 1,054,000 | $ 1,126,000 | |
| Credit agreement, amount outstanding | 0 | $ 0 | $ 0 | ||
| Credit facility covenants | (i) an EBITDAR Coverage Ratio (as defined in the Credit Agreement) of not less than 1.25:1.0 as of each quarter end and (ii) total funded debt to EBITDA not greater than 2.0:1.0 | ||||
| Minimum EBITDAR coverage ratio | 1.25% | ||||
| Maximum Total Funded Debt to EBITDA ratio | 2.00% | ||||
| Credit agreement, pledge percentage | 100.00% | ||||
| Compliance description | As of September 30, 2018, the Company was in compliance with all financial and non-financial covenants. | ||||
| LIBOR [Member] | |||||
| Line of Credit Facility [Line Items] | |||||
| Base spread on variable rate | 1.50% | ||||
| Federal Funds Rate [Member] | |||||
| Line of Credit Facility [Line Items] | |||||
| Base spread on variable rate | 1.50% | ||||
| Credit Agreement [Member] | |||||
| Line of Credit Facility [Line Items] | |||||
| Interest expense | $ 26,000 | $ 28,000 | $ 78,000 | $ 83,000 | |
| Minimum [Member] | LIBOR [Member] | |||||
| Line of Credit Facility [Line Items] | |||||
| Base spread on variable rate | 0.875% | ||||
| Maximum [Member] | LIBOR [Member] | |||||
| Line of Credit Facility [Line Items] | |||||
| Base spread on variable rate | 1.125% | ||||
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- Definition Credit Facility Pledge Percentage No definition available.
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- Definition Date Entered Into Credit Agreement No definition available.
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- Definition Line Of Credit Libor Rate Duration Period No definition available.
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- Definition Maximum Funded Debt To EBITDA Ratio as of each quarter end on a rolling four quarter basis. No definition available.
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- Definition Minimum EBITDAR Coverage Ratio as of each quarter end on a rolling four quarter basis. No definition available.
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- Definition Standby letters of credit amount utilized. No definition available.
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- Definition Standby Letters Of Credit Sublimit No definition available.
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. No definition available.
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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/disclosureRef
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Identification of whether the entity has been in compliance with any credit facility debt covenants during the period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Description of the conditions for borrowing under the credit facility including the nature of any restrictions. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Date the credit facility terminates, in CCYY-MM-DD format. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Date the credit facility first became available, in CCYY-MM-DD format. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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 Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. No definition available.
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