Stock-Based Compensation (Restricted Stock Units) (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
Jan. 31, 2019	Jan. 31, 2018
Summary of restricted stock and stock unit awards
Unrecognized compensation at cost	$ 1,600
Restricted Stock Units [Member]
Summary of restricted stock and stock unit awards
Granted	55,555	504,404
Expense for 12 months ended	$ 907	$ 830
Restricted Stock Units
Outstanding at beginning of year	692,404	491,284
Granted	55,555	504,404
Vested	(226,804)	(259,284)
Forfeited	(20,000)	(44,000)
Outstanding at end of year	501,155	692,404
Weighted- average fair value of restricted stock units
Outstanding at beginning of year	$ 4.25	$ 2.46
Granted	4.49	4.95
Vested	4.63	4.86
Forfeited	4.01	4.42
Outstanding at end of year	$ 4.44	$ 4.25
2011 Plan [Member] \| Restricted Stock Units [Member]
Summary of restricted stock and stock unit awards
Granted	55,555
Restricted Stock Units
Granted	55,555

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
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Unrecognized cost of unvested share-based awards, other than options, awarded to employees as compensation.

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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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- Definition

Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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