11. CAPITAL STOCK (Tables)

12 Months Ended

May 31, 2017

Capital Stock Tables

Stock option transactions

    The following tables summarize the Company’s stock option and RSU transactions during fiscal 2017, 2016 and 2015 (in thousands):

	Available
	Shares
Balances, May 31, 2014	1,145
Additional shares reserved	860
Options granted	(1,253	)
Options terminated	93
Balances, May 31, 2015	845
Additional shares reserved	800
Options granted	(92	)
RSUs granted	(35	)
Options terminated	329
Balances, May 31, 2016	1,847
Additional shares reserved	2,238
Options granted	(368	)
RSUs granted	(157	)
Options terminated	55
Plan shares expired	(1,446	)
Balances, May 31, 2017	2,169

    The following table summarized the stock option transactions during fiscal 2017, 2016 and 2015 (in thousands, except per share data):

	Outstanding Options
			Weighted
	Number		Average		Aggregate
	of		Exercise		Intrinsic
	Shares		Price		Value
Balances, May 31, 2014	3,002		$	1.31	$	2,913
Options granted	1,253		$	2.38
Options terminated	(93	)	$	2.30
Options exercised	(476	)	$	1.33
Balances, May 31, 2015	3,686		$	1.66	$	2,946
Options granted	92		$	2.12
Options terminated	(329	)	$	1.93
Options exercised	(248	)	$	1.34
Balances, May 31, 2016	3,201		$	1.66	$	189
Options granted	368		$	1.83
Options terminated	(55	)	$	1.42
Options exercised	(440	)	$	1.35
Balances, May 31, 2017	3,074		$	1.73	$	8,763
Options exercisable and expected to be exercisable at May 31, 2017	3,030		$	1.72	$	8,654

Options Outstanding

 The options outstanding and exercisable at May 31, 2017 were in the following exercise price ranges (in thousands, except per share data):

			Options Outstanding					Options Exercisable
			at May 31, 2017					at May 31, 2017
Range of Exercise Prices			Number Outstanding Shares	Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price		Number Exercisable Shares	Weighted Average Remaining Contractual Life (Years)		Weighted Average Exercise Price		Aggregate Intrinsic Value
	$	0.59-$0.97	514		1.77	$	0.66	514		1.77	$	0.66
	$	1.09-$1.40	784		2.41	$	1.28	773		2.40	$	1.28
	$	1.68-$2.06	542		5.12	$	1.77	287		4.26	$	1.85
	$	2.10-$2.81	1,234		4.53	$	2.44	848		4.46	$	2.46
	$	0.59-$2.81	3,074		3.63	$	1.73	2,422		3.21	$	1.63	$	7,148