Supplemental Cash Flow Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	May 31, 2017	May 31, 2016
Cash paid for:
Interest	$ 4	$ 5
Income taxes, net of refunds		6
Non-cash activity:
Note receivable paid directly to officer	42	26
Note payable to officer	(42)	(26)
Imputed interest expense	16	17
Imputed interest income	(16)	$ (17)
Capital additions transferred from inventory	$ 113