Note 7 - Stock-based Compensation (Tables)

6 Months Ended

Jul. 31, 2019

Notes Tables

Share-based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]

	Three Months Ended July 31,				Six Months Ended July 31,
	2019		2018		2019		2018
Stock-based compensation expense	$	3	$	9	$	8	$	23
Restricted stock-based compensation expense		403		432		552		688
Total stock-based compensation expense	$	406	$	441	$	560	$	711

Share-based Payment Arrangement, Option, Activity [Table Text Block]

Option activity	No. of Shares Underlying Options			Weighted Average Exercise Price		Weighted Average Remaining Contractual Term		Aggregate Intrinsic Value
Outstanding (unvested) at January 31, 2019		218			8.60		3.8	$	257
Exercised		(37	)		6.91				75
Expired or forfeited		(20	)		7.99
Outstanding at July 31, 2019		161			8.96		3.6		179
Exercisable at July 31, 2019		158		$	8.99		3.6	$	175

Schedule of Nonvested Share Activity [Table Text Block]

Unvested option activity	No. of Shares Underlying Options			Weighted Average Grant Date Fair Value		Aggregate Intrinsic Value
Outstanding (unvested) at January 31, 2019		11		$	7.00	$	19
Vested		(7	)
Expired or forfeited		(1	)		7.99
Outstanding at July 31, 2019		3		$	7.33	$	5

Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]

Restricted stock activity	Restricted Shares			Weighted Average Grant Price Per Share		Aggregate Intrinsic Value
Outstanding (unvested) at January 31, 2019		283			8.74	$	2,476
Granted		133			9.09
Vested and issued		(52	)		8.86
Forfeited or retired for taxes		(22	)		8.85
Outstanding (unvested) end at July 31, 2019		342			8.85	$	3,034