Note 12 - Information on Business Segments - Reconciliation of Operating Profit (Loss) From Segments (Details) - USD ($) $ in Thousands	3 Months Ended
	May 27, 2018	May 28, 2017
Net sales	$ 31,102	$ 27,417
Total Segment Operating Income	3,506	234
Income Before Income Taxes	3,846	473
Operating Segments [Member]
Total Segment Operating Income	6,068	4,478
Segment Reconciling Items [Member]
Corporate and Other Expenses	(1,555)	(1,768)
Net Interest Income	340	239
	(2,222)	(4,005)
Electronics [Member] | Operating Segments [Member]
Net sales	20,709	18,691
Total Segment Operating Income	3,579	2,399
Electronics [Member] | Segment Reconciling Items [Member]
Depreciation	(271)	(286)
Non-recurring Costs	(172)	(1,250)
Aerospace [Member] | Operating Segments [Member]
Net sales	10,393	8,726
Total Segment Operating Income	2,489	2,079
Aerospace [Member] | Segment Reconciling Items [Member]
Depreciation	(426)	(439)
Other Segments [Member] | Segment Reconciling Items [Member]
Depreciation	(7)	(15)
Non-recurring Costs	$ (131)	$ (486)