Description of Business and Summary of Significant Accounting Policies - Accounting for Stock-Based Compensation - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands						12 Months Ended
	Mar. 01, 2024	Sep. 28, 2023	Feb. 06, 2023	Mar. 01, 2022	Jul. 08, 2019	Feb. 29, 2024	Feb. 28, 2023	Feb. 28, 2022	Feb. 28, 2015
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Share-based compensation arrangement by share-based payment award, number of shares available for grant						1,759,000
Employee service share-based compensation, nonvested awards, total compensation cost not yet recognized						$ 0
Non-cash stock-based compensation expense						$ 798	$ 609	$ 907
Vested and unissued shares				100,000
Cash equivalent share grant		$ 250
Shares withheld for taxes				38,663
Annual salary		750
2014 Plan [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Share-based Compensation arrangement by share-based payment award, equity instruments other than options, grants in period, weighted average grant date fair value						$ 9.89	$ 9.00	$ 13.59
Vested and unissued shares						113,790	33,930	197,891
Weighted Average Grant Date Fair Value, Vested						$ 7.00	$ 6.10	$ 5.76
Patrick M. Lavelle [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Annual salary and cash bonus					$ 1,000
Non-cash stock-based compensation expense						$ 91	$ 91	$ 241
Grant of market stock units maximum amount					$ 5,000
Maximum average stock price of grant market stock units					$ 5.49
Maximum increase amount of market stock units award					$ 5,000
Maximum threshold share price increases in value of award					$ 15
Estimated Maximum threshold share increases in value of award					333,333
Share-Based compensation arrangement by share based payment award grant of market stock units, vesting percentage	20.00%			80.00%		20.00%
Percentage of market stock units, remain outstanding							4,000
Beat Kahli [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Annual salary			$ 300
Ms. Shelton
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Cash equivalents					$ 100
Common Class A [Member] | Patrick M. Lavelle [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Allocated share-based compensation expense		$ 99
Award vesting period					5 years
Grant of initial shares under employment agreement				61,337
Common Class A [Member] | Patrick M. Lavelle [Member] | 2012 Plan [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Share-based Compensation arrangement by share-based payment award, equity instruments other than options, grants in period, weighted average grant date fair value						$ 4.15
Grant of initial shares under employment agreement					200,000
Share based compensation related to additional stock grants						$ 0	$ 0	$ 157
Common Class A [Member] | Patrick M. Lavelle [Member] | 2012 Plan [Member] | March 1, 2021 [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Additional grant of shares under employment agreement					100,000
Common Class A [Member] | Patrick M. Lavelle [Member] | 2012 Plan [Member] | March 1, 2020 [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Additional grant of shares under employment agreement					100,000
Common Class A [Member] | Patrick M. Lavelle [Member] | 2012 Plan [Member] | March 1, 2022 [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Additional grant of shares under employment agreement					100,000
Common Class A [Member] | Beat Kahli [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Allocated share-based compensation expense						201
Share-based Compensation arrangement by share-based payment award, equity instruments other than options, grants in period, weighted average grant date fair value			$ 10.66
Common Class A [Member] | Beat Kahli [Member] | June 30, 2023 [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Additional grant of shares under employment agreement			20,000
Common Class A [Member] | Beat Kahli [Member] | September 30, 2023 [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Additional grant of shares under employment agreement			20,000
Common Class A [Member] | Beat Kahli [Member] | December 31, 2023 [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Additional grant of shares under employment agreement			20,000
Common Class A [Member] | Beat Kahli [Member] | March 31, 2024 [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Additional grant of shares under employment agreement			20,000
Common Class A [Member] | Ms. Shelton
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Allocated share-based compensation expense						$ 40
Award vesting period					5 years
Incentive Stock Options [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Percentage of stockholders granted exercise price						10.00%
Incentive Stock Options [Member] | Common Class A [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Percentage of fair market value of stock allowed for exercise price of options to be granted						110.00%
Employee Stock Option [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Share-based compensation arrangement by share-based payment award, options, grants in period, gross						0	0	0
Allocated share-based compensation expense						$ 0	$ 0	$ 0
Restricted Stock Units [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Share-based compensation arrangement by share-based payment award, expiration period									3 years
Allocated share-based compensation expense						798	$ 609	$ 907
Employee service share-based compensation, nonvested awards, total compensation cost not yet recognized						$ 865
Stock issued during period, shares, restricted stock award, gross						18,116	46,556	48,527
Share-based Compensation arrangement by share-based payment award, equity instruments other than options, grants in period, weighted average grant date fair value						$ 9.89	$ 8.28	$ 13.59
Share-based payment award vesting age of employee									65 years
Restricted Stock Units [Member] | 2014 Plan [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Vested and unissued shares						8,634
Cash equivalents						$ 81
Unissued Restricted Stock Unit Awards [Member] | 2014 Plan [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Vested and unissued shares						605,295
Weighted Average Grant Date Fair Value, Vested						$ 6.23
Minimum [Member] | All Other Options and Stock Appreciation Rights [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Percentage of fair market value of stock allowed for exercise price of options to be granted						100.00%
Minimum [Member] | All Other Options and Stock Appreciation Rights [Member] | Common Class A [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Percentage of fair market value of stock allowed for exercise price of options to be granted						100.00%
Maximum [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Share-based compensation arrangement by share-based payment award, expiration period						10 years
Maximum [Member] | Restricted Stock Units [Member]
Description Of Business And Summary Of Significant Accounting Policies [Line Items]
Share-based payment award vesting required service period									10 years