Income Taxes (Components of Income Tax Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2017	Jan. 31, 2016	Jan. 31, 2015
Current
Federal	$ 24	$ 1	$ 0
State	65	40	35
Current income tax benefit (expense)	89	41	35
Deferred
Federal	1,519	1,567	232
State	190	724	48
Total deferred income taxes	1,709	2,291	280
Change in Valuation Allowance	(19,831)	(2,214)	(246)
Deferred income taxes	(18,122)	77	34
Income tax expense (benefit)	$ (18,033)	$ 118	$ 69