Note 5 - Leases - Schedule of Right-of-use Assets and Operating Lease Liabilities (Details) - USD ($) $ in Thousands	May 31, 2020	Mar. 01, 2020	[1]
Operating right-of-use assets	$ 387	$ 420
Operating lease liabilities	142	152
Long-term operating lease liabilities	245	$ 268
Total operating lease liabilities	$ 387

[1] The balance sheet at March 1, 2020 has been derived from the audited consolidated finacial statements at that date.