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Income Taxes (Components of Income Tax Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2018	Jan. 31, 2017	Jan. 31, 2016
Current
Federal	$ (296)	$ 24	$ 1
State	98	65	40
Current income tax benefit (expense)	(198)	89	41
Deferred
Federal	5,270	1,519	1,567
State	141	190	724
Total deferred income taxes	5,411	1,709	2,291
Change in Valuation Allowance	410	(19,831)	(2,214)
Deferred income taxes	5,821	(18,122)	77
Income tax expense (benefit)	$ 5,623	$ (18,033)	$ 118

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