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Revolving Credit Facility and Long-Term Debt - Additional Information (Detail) - USD ($) | 1 Months Ended | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Jul. 31, 2023 | Jun. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2022 | Sep. 30, 2022 | Jun. 30, 2023
Line of Credit Facility [Line Items] |  |  |  |  |  |
Line of credit facility commitment fee description |  |  |  |  |  | The Agreement also provides for an unused commitment fee of 0.30% per year on the average daily unused amount of the revolving credit line, as well as a fee of 1.75% of the face amount of each letter of credit reserved under the line of credit.
Tangible net worth amount |  | $ 100,000,000 | $ 100,000,000 | $ 100,000,000 | $ 100,000,000 |
Investment covenant compliance |  |  |  |  |  | $ 10,000,000
Minimum [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Tangible net worth amount |  | 100,000,000 | 100,000,000 | 100,000,000 | 100,000,000 |
Revolving Credit Facility [Member] | SOFR [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Term loan from bank interest rate description |  |  |  |  |  | the daily Simple Secured Overnight Financing Rate (“SOFR”) plus 1.75% or (b) one-month Term SOFR plus 1.75%.
Revolving Credit Facility [Member] | One-Month Term SOFR [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Term loan from bank interest rate description |  |  |  |  |  | one-month Term SOFR plus 1.75
SOFR plus rate |  |  |  |  |  | 1.75%
Agreement [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Outstanding balance on term loan and revolving credit facility |  | 0 |  | 0 |  | $ 0
Dividends or distributions paid |  |  |  |  |  | 0
Maximum amount to redeem retire repurchase or acquire stock upon agreement |  |  |  |  |  | 15,000,000
Agreement [Member] | Minimum [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
EBITDA |  | 10,000,000 | $ 10,000,000 | $ 10,000,000 | $ 10,000,000 | 10,000,000
Agreement [Member] | Maximum [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Prohibition on incurring additional indebtedness without the prior approval of the Bank in purchase money financing |  |  |  |  |  | 1,000,000
Agreement [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Credit facility borrowing capacity |  | 50,000,000.0 |  |  |  | $ 50,000,000.0
Unused commitment fee on unused amount during period |  |  |  |  |  | 0.30%
Agreement [Member] | Revolving Credit Facility [Member] | SOFR [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
SOFR plus rate |  |  |  |  |  | 1.75%
Agreement [Member] | Standby Letters of Credit [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Credit facility borrowing capacity |  | $ 8,000,000.0 |  |  |  | $ 8,000,000.0
Agreement [Member] | Line of Credit [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Unused commitment fee on unused amount |  |  |  |  |  | 1.75%
Subsequent Event [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Line of credit facility commitment fee description | The Amendment increased the sublimit for standby letters of credit from $8.0 million to $25.0 million and increased the unused commitment fee from 0.30% per year to 0.35% per year on the average daily unused amount of the revolving credit line. |  |  |  |  |
Tangible net worth amount | $ 50,000,000 |  |  |  |  |
Investment covenant compliance | 25,000,000 |  |  |  |  |
Investment covenants in fiscal year | 25,000,000 |  |  |  |  |
Subsequent Event [Member] | Agreement [Member] | Revolving Credit Facility [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Line of credit facility | $ 50,000,000.0 |  |  |  |  |
Subsequent Event [Member] | Agreement [Member] | Revolving Credit Facility [Member] | Maximum [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Unused commitment fee on unused amount during period | 0.35% |  |  |  |  |
Subsequent Event [Member] | Agreement [Member] | Standby Letters of Credit [Member] |  |  |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |  |  |
Credit facility borrowing capacity | $ 25,000,000.0 |  |  |  |  |

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