Note 4 - Income Taxes (Details Textual) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 02, 2014	Feb. 28, 2016	Mar. 01, 2015	Mar. 02, 2014	Mar. 03, 2013
Nelco Products Pte Ltd [Member]
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount		$ 61,000,000
Nelco Technology Zhuhai FTZ Ltd [Member] | New York [Member]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount		$ 772,000
SINGAPORE
Tax Expense, Allocated to Undistributed Foreign Earnings	$ 63,958,000
State and Local Jurisdiction [Member] | Minimum [Member]
Operating Loss Carryforwards Expiration Year		2017
State and Local Jurisdiction [Member] | Maximum [Member]
Operating Loss Carryforwards Expiration Year		2035
Foreign Tax Authority [Member]
Operating Loss Carryforwards Expiration Year		2026
New York [Member] | Minimum [Member]
Operating Loss Carryforwards Expiration Year		2017
New York [Member] | Maximum [Member]
Operating Loss Carryforwards Expiration Year		2018
New York [Member] | Tax Year 2008 [Member]
Closed Tax Year		2008
New York [Member] | Tax Year 2009 [Member]
Closed Tax Year		2009
New York [Member] | Tax Year 2010 [Member]
Closed Tax Year		2010
New York [Member] | Tax Year 2011 [Member]
Closed Tax Year		2011
New York [Member]
Tax Credit Carryforward, Amount		$ 478,000	$ 709,000
Kansas [Member] | Minimum [Member]
Operating Loss Carryforwards Expiration Year		2019
Kansas [Member] | Maximum [Member]
Operating Loss Carryforwards Expiration Year		2020
Kansas [Member]
Tax Credit Carryforward, Amount		$ 225,000	225,000
Arizona [Member]
Tax Credit Carryforward, Amount		135,000	135,000
Prepaid Expenses and Other Current Assets [Member]
Deferred Tax Assets, Net of Valuation Allowance, Current		584,000	3,324,000
Current Liabilities [Member]
Unrecognized Tax Benefits		1,295,000	$ 1,204,000
Current Federal Tax Expense (Benefit)		10,118,000		$ (2,435,000)
Tax Expense, Allocated to Undistributed Foreign Earnings		0	$ 0
Deferred Tax Assets, Operating Loss Carryforwards, Domestic		0	8,611,000
Deferred Tax Assets, Operating Loss Carryforwards, State and Local		10,083,000	14,360,000
Deferred Tax Assets, Operating Loss Carryforwards, Foreign		30,871,000	33,672,000
Deferred Tax Assets, Tax Credit Carryforwards, Foreign		524,000	486,000
Deferred Tax Assets, Tax Credit Carryforwards, Research		0	392,000
Deferred Tax Assets, Valuation Allowance		11,115,000	11,887,000
Unrecognized Tax Benefits	$ 276,000	1,255,000	1,135,000	276,000	$ 3,053,000
Unrecognized Tax Benefits, Decrease Resulting from Current Period Tax Positions				2,715,000
Tax Adjustments, Settlements, and Unusual Provisions				1,949,000
Income Tax Examination, Interest Expense				$ 375,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued		$ 51,000	$ 70,000