Supplemental Cash Flow Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Feb. 28, 2018	Feb. 28, 2017
Cash paid for:
Interest	$ 20	$ 15
Income taxes, net of refunds	24	20
Non-cash activity:
Note receivable paid directly to officer	175	147
Note payable to officer	175	147
Imputed interest expense	62	87
Imputed interest income	62	$ 87
Capital additions transferred from inventory	$ 113