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Note 16 - Stock-based Compensation Plans (Tables)

12 Months Ended

Jan. 31, 2017

Notes Tables

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]

Year Ended			January 31, 2017				January 31, 2016				January 31, 2015
Cost of revenues			40				24				45
Sales and marketing			81				41				70
Research and development			14				-				2
General and administrative			1,887				1,512				1,426
Effect on net income			2,022				1,577				1,543

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

Year Ended			January 31, 2017				January 31, 2016				January 31, 2015
Expected dividend yield (%)			-				N/A				-
Expected volatility (%)			25.2				N/A				25.4
Risk-free rate (%)			0.6				N/A				1.5
Expected option life (years)			5				N/A				5

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

			Number of Stock Options Outstanding				Weighted- Average Exercise Price				Weighted- Average Remaining Contractual Life (years)				Aggregate Intrinsic Value (in millions)
Balance at January 31, 2015			953,264			$	6.33				2.5				10.6
Exercised			(37,500	)		$	4.18
Surrendered for Shares			(446,875	)		$	2.59
Balance at January 31, 2016			468,889			$	8.25				3.5				5.2
Granted			170,932			$	19.06
Exercised			(113,500	)		$	4.93
Balance at January 31, 2017			526,321			$	12.36				4.2				4.9
Vested or expected to vest at January 31, 2017			505,228			$	12.20				4.2				4.7
Exercisable at January 31, 2017			286,529			$	9.88				3.3				3.3

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

					Options Outstanding												Options Exercisable
Range of Exercise Prices					Weighted Average Exercise Price				Number of Stock Options				Weighted Average Remaining Contractual Life (years)				Weighted Average Exercise Price				Number of Stock Options
$4.80	–	$5.45		$	4.84				108,389				1.1			$	4.84				108,389
$6.79	–	$6.79		$	6.79				32,000				2.4			$	6.79				24,000
$11.50	–	$11.66		$	11.65				215,000				4.4			$	11.65				105,500
$18.81	–	$20.45		$	19.05				170,932				6.3			$	18.81				48,640
				$	12.36				526,321				4.2			$	9.88				286,529

Schedule of Nonvested Share Activity [Table Text Block]

			Number of Stock Options Outstanding				Weighted- Average Grant-Date Fair Value per Share
Balance at January 31, 2015			123,854			$	2.56
Vested			(70,276	)		$	1.92
Balance at January 31, 2016			53,578			$	2.52
Granted			170,932			$	4.46
Vested			(72,218	)		$	3.70
Balance at January 31, 2017			152,292			$	4.12

Share-based Compensation, Performance Shares Award Outstanding Activity [Table Text Block]

			Number of PSUs Outstanding				Weighted- Average Granted Date Fair Value				Weighted- Average Remaining Contractual Life (years)				Aggregate Intrinsic Value (in millions)
Balance at January 31, 2015			174,258			$	12.61				7.9				3.0
Granted			49,187			$	19.70
Performance units issued			30,092			$	9.34
Balance at January 31, 2016			253,537			$	12.39				7.2				4.9
Granted			54,480			$	23.37
Performance units issued			29,630			$	9.26
Balance at January 31, 2017			337,647			$	13.73				6.6				7.3
Vested or expected to vest at January 31, 2017			337,647			$	13.73				6.6				7.3
Exercisable at January 31, 2017			233,980			$	10.30				5.8				5.0

Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block]

			Number of RSUs Outstanding				Weighted- Average Granted Date Fair Value				Weighted- Average Remaining Contractual Life (years)				Aggregate Intrinsic Value (in millions)
Balance at January 31, 2015			175,592			$	9.94				7.9				3.1
Granted			49,187			$	15.33
Balance at January 31, 2016			224,779			$	10.03				7.4				4.3
Granted			38,456			$	18.81
Balance at January 31, 2017			263,235			$	11.17				6.7				5.7
Vested or expected to vest at January 31, 2017			263,235			$	11.17				6.7				5.7
Exercisable at January 31, 2017			221,201			$	10.00				6.4				4.8

Schedule Of Cash Settled Restricted Share Unit Plan Activity [Table Text Block]

			Number of CRSUs Outstanding				Weighted- Average Remaining Contractual Life (years)
Balance at January 31, 2015			113,856				1.5
Granted			72,817
Vested and settled in cash			(85,924	)
Balance at January 31, 2016			100,749				1.6
Granted			43,218
Vested and settled in cash			(66,638	)
Balance at January 31, 2017			77,329				1.4
Non-vested at January 31, 2017			77,329				1.4

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