Note 7 - Stock-based Compensation - Restricted Stock Activity (Details) - Restricted Stock [Member] - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	9 Months Ended
Oct. 31, 2018	Jan. 31, 2018
Outstanding (unvested) at beginning of year (in shares)	360
Outstanding (unvested) at beginning of year, weighted average grant price per share (in dollars per share)	$ 9.14	$ 9.05
Outstanding (unvested) at beginning of year, aggregate intrinsic value	$ 3,199	$ 3,254
Granted (in shares)	148
Granted, weighted average grant price per share (in dollars per share)	$ 9.76
Vested and issued (in shares)	(89)
Forfeited (in shares)	(69)
Forfeited, weighted average grant price per share (in dollars per share)	$ 7.27
Outstanding (unvested) at end of period (in shares)	350

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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Number of equity instruments other than options outstanding, including both vested and non-vested instruments.

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Intrinsic value of equity-based compensation awards outstanding. Excludes stock and unit options.

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Weighted average grant-date fair value of non-vested options outstanding.

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Number of shares related to Restricted Stock Award forfeited during the period.

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Total number of shares issued during the period, including shares forfeited, as a result of Restricted Stock Awards.

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