Income Taxes - Summary of Deferred Tax Assets and Liabilities (Detail) - USD ($)	Mar. 31, 2022	Mar. 31, 2021
Deferred tax assets:
Accrued liabilities not currently deductible	$ 6,277,000	$ 7,908,000
Allowance for doubtful accounts	658,000	849,000
Stock-based compensation	2,090,000	2,242,000
Deferred lease liability	11,002,000	14,080,000
Deferred payroll taxes	1,332,000	2,693,000
Other	675,000	877,000
Deferred tax assets	22,034,000	28,649,000
Deferred tax liabilities:
Excess of book over tax basis of fixed assets	(7,313,000)	(9,166,000)
Intangible assets	(4,937,000)	(4,820,000)
Right-of-use asset	(8,939,000)	(11,668,000)
Accrued revenue	(1,665,000)	(1,526,000)
Other	(476,000)	(367,000)
Total deferred tax liabilities	(23,330,000)	(27,547,000)
Valuation allowance	(393,000)	(489,000)
Deferred tax liabilities	(23,723,000)	(28,036,000)
Net deferred tax assets (liabilities)	$ 1,689,000	$ 613,000