5. Stockholders' Equity (Tables)

9 Months Ended

Mar. 31, 2018

Schedule of share-based compensation expense

	Three Months Ended March 31,				Nine Months Ended March 31,
	2018		2017		2018		2017
	(In thousands)
Cost of revenue	$	14	$	12	$	40	$	36
Selling, general and administrative		237		169		688		480
Research and development		44		43		149		129
Total share-based compensation expense	$	295	$	224	$	877	$	645

Schedule of unrecognized share-based compensation expense

	Remaining Unrecognized Compensation Expense		Remaining Weighted- Average Years To Recognize
		(In thousands)
Stock options	$	1,762		2.7
RSUs		236		1.0
Stock purchase rights under ESPP		223		1.5
	$	2,221

Stock Options [Member]

Summary of stock option activity

	Number of Shares			Weighted- Average Exercise Price per Share
		(In thousands)
Balance of options outstanding at June 30, 2017	$	4,184		$	1.78
Granted		929			2.15
Forfeited		(177	)		1.70
Expired		(309	)		3.70
Exercised		(203	)		1.67
Balance of options outstanding at March 31, 2018	$	4,424		$	1.73

Restricted Stock Units (RSUs) [Member]

Summary of other-than-option activity

	Number of Shares			Weighted- Average Grant Date Fair Value per Share
		(In thousands)
Balance of RSUs outstanding at June 30, 2017		300		$	1.29
Granted		40			2.05
Vested		(150	)		1.29
Balance of RSUs outstanding at March 31, 2018		190		$	1.45

ESPP [Member]

Summary of other-than-option activity

	Number of Shares
		(In thousands)
Shares available for issuance at June 30, 2017		476
Shares issued		(155	)
Shares available for issuance at March 31, 2018		321