Stock Options (Tables)

12 Months Ended

Jun. 30, 2018

2012 Employee Stock Option Plan [Member]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

The fair value of each option granted during fiscal 2018 and 2017 was estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions:

	2018			2017
Risk-free interest rates		2.4	%		2.4	%
Expected lives		10 years			10 years
Expected volatility		52	%		52	%
Expected dividend yields		0	%		0	%

Schedule of Share-based Compensation, Stock Options, Activity

The following table reflects activity under the 2012 Plan for the fiscal years ended June 30,:

	2018					2017
	Options			Weighted average exercise price		Options			Weighted average exercise price
Outstanding, beginning of year		70,600		$	5.84		112,500		$	5.54
Granted		25,000			9.01		5,000			8.15
Terminated		(4,000	)		9.15		(11,400	)		6.10
Exercised		(34,400	)		5.68		(35,500	)		5.13
Outstanding, end of year		57,200		$	7.09		70,600		$	5.84
Exercisable, end of year		30,400		$	6.55		38,700		$	5.98
Weighted average fair value at grant date of options granted	$	5.61				$	5.22
Total intrinsic value of options exercised	$	187,000				$	152,000
Total intrinsic value of options outstanding	$	324,000				$	252,000
Total intrinsic value of options exercisable	$	246,000				$	132,000

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

The following table summarizes information about stock options outstanding under the 2012 Employee Plan at June 30, 2018:

	Options outstanding						Options exercisable
Range of exercise prices	Number outstanding		Weighted average remaining contractual life		Weighted average exercise price		Number exercisable		Weighted average exercise price
$4.29-$9.63		57,200		7.4	$	7.09		30,400	$	6.55
		57,200		7.4	$	7.09		30,400	$	6.55

2012 Non-Employee Stock Option Plan [Member]

Schedule of Share-based Compensation, Stock Options, Activity

The following table reflects activity under the 2012 Non-Employee Plan for the fiscal years ended June 30,:

	2018					2017
	Options			Weighted average exercise price		Options			Weighted average exercise price
Outstanding, beginning of year		14,200		$	4.69		35,000		$	4.73
Granted		15,000			8.70		—			—
Terminated		—			—		—			—
Exercised		(1,400	)		4.73		(20,800	)		4.76
Outstanding, end of year		27,800		$	6.85		14,200		$	4.69
Exercisable, end of year		13,800		$	5.61		5,200		$	4.76
Weighted average fair value at grant date of options granted	$	5.55					n/a
Total intrinsic value of options exercised	$	14,000				$	96,000
Total intrinsic value of options outstanding	$	217,000				$	67,000
Total intrinsic value of options exercisable	$	125,000				$	24,000

Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range

The following table summarizes information about stock options outstanding under the 2012 Non-Employee Plan at June 30, 2018:

	Options outstanding						Options exercisable
Range of exercise prices	Number outstanding		Weighted average remaining contractual life		Weighted average exercise price		Number exercisable		Weighted average exercise price
$4.37 - $8.70		27,800		7.7	$	6.85		13,800	$	5.61
		27,800		7.7	$	6.85		13,800	$	5.61

Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]

The fair value of each option granted during fiscal 2018 was estimated on the date of grant using the Black-Scholes option-pricing model with the following weighted average assumptions:

	2018
Risk-free interest rates		2.4	%
Expected lives		10 years
Expected volatility		52	%
Expected dividend yields		0	%

2002 Employee Stock Option Plan [Member]

Schedule of Share-based Compensation, Stock Options, Activity

 The following table reflects activity under the 2002 Employee plan for the fiscal years ended June 30,:

	2018					2017
	Options			Weighted average exercise price		Options			Weighted average exercise price
Outstanding, beginning of year		5,000		$	5.35		102,500		$	6.04
Granted		—			—		—			—
Terminated/Lapsed		—			—		(10,500	)		6.02
Exercised		(5,000	)		5.35		(87,000	)		6.08
Outstanding, end of period		—		$	—		5,000		$	5.35
Exercisable, end of period		—		$	—		5,000		$	5.35
Weighted average fair value at grant date of options granted		n/a					n/a
Total intrinsic value of options exercised	$	47,000				$	289,000
Total intrinsic value of options outstanding		n/a				$	20,000
Total intrinsic value of options exercisable		n/a				$	20,000