Summary of Significant Accounting Policies - Additional Information (Detail) $ / shares in Units, $ in Thousands	12 Months Ended
	Feb. 28, 2019 USD ($) Segment $ / shares shares	Feb. 28, 2018 USD ($) $ / shares shares	Jan. 20, 2014 shares
Summary Of Significant Accounting Policies Line Items [Line Items]
Reserves for obsolescence | $	$ 859	$ 1,399
Stock options, debentures, and other liabilities convertible into shares excluded from diluted earnings per (loss) share calculation | shares | shares		200,000
Depreciation expense | $	256	$ 261
Investment on operating properties | $	$ 100
Authorized stock repurchase | shares	2,632,500
Additional authorized stock repurchase | shares			1,500,000
Repurchase of treasury stock (in shares) | shares	8,858	3,600
Average cost of repurchase shares | $ / shares	$ 1.12	$ 1.24
Remaining repurchase of shares authorized | shares	490,186
Increase In Revenues | $	$ 3,000
Number of reportable segments | Segment	1
Remaining performance obligations | $	$ 521
Revenue, Performance Obligation, Description of Timing	We expect to recognize revenue these remaining performance obligations over the next 24 months. We have elected not to provide disclosures regarding remaining performance obligations for contracts with a term of 1 year or less.
Building | Maximum
Summary Of Significant Accounting Policies Line Items [Line Items]
Useful life	20 years
Building | Minimum
Summary Of Significant Accounting Policies Line Items [Line Items]
Useful life	10 years
Machinery and Equipment | Maximum
Summary Of Significant Accounting Policies Line Items [Line Items]
Useful life	10 years
Machinery and Equipment | Minimum
Summary Of Significant Accounting Policies Line Items [Line Items]
Useful life	5 years
FLORIDA
Summary Of Significant Accounting Policies Line Items [Line Items]
Number of merged businesses	2
Number of consolidated Facilities	1
Customer Concentration Risk | Sales Revenue, Goods, Net
Summary Of Significant Accounting Policies Line Items [Line Items]
Concentration risk, percentage of consolidated net sales	45.00%
Customer Concentration Risk | Non-US | Sales Revenue, Goods, Net
Summary Of Significant Accounting Policies Line Items [Line Items]
Concentration risk, percentage of consolidated net sales	11.00%	16.00%