Income Taxes (Income Tax Expense Reconciliation) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2016	Jan. 31, 2015	Jan. 31, 2014
Income Tax Disclosure [Abstract]
Statutory	$ 1,587	$ 285	$ (929)
State taxes (net of federal tax)	303	144	(47)
Change in valuation allowance	(2,214)	(248)	(253)
State rate adjustment	168	(8)	82
Change in unrecognized tax benefits	(3)	(19)	(32)
Expirations of attributes	229	65	100
Other	48	(150)	76
Income tax expense (benefit)	$ 118	$ 69	$ (1,003)