Income Taxes - Components of Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015
Current:
Federal	$ 1,930	$ 1,666
State	470	466
Foreign	276	535
Current Income Tax Expense	2,676	2,667
Deferred:
Federal	(402)	(290)
State	126	(107)
Foreign	(16)
Deferred Income Tax Expense Total	(292)	(397)
Total	$ 2,384	$ 2,270