Accounting for Stock-Based Compensation - Summary of Activity Related to Initial Stock Grant Additional Stock Grants under Employment Agreement and RSU Grants under 2014 Plan (Details) - $ / shares			9 Months Ended
	Mar. 01, 2021	Mar. 01, 2020	Nov. 30, 2021
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period	(100,000)	(100,000)
2014 Plan [Member] | Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number	603,724		603,724
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			48,527
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period			(136,008)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested and Settled in Period			(100,000)
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number			416,243
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value	$ 5.18		$ 5.18
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value			13.59
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value			5.50
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested and Settled Period, Weighted Average Grant Date Fair Value			4.15
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value			$ 6.30