Stock Options (Detail) - USD ($)	6 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Employee 2012 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, beginning of year	112,500	78,500
Granted	0	44,000
Terminated/Lapsed	(15,000)	(10,000)
Exercised	0	0
Outstanding, end of period	97,500	112,500
Exercisable, end of period	53,500	27,500
Weighted average fair value at grant date of options granted		$ 2.82
Total intrinsic value of options exercised
Total intrinsic value of options outstanding	$ 61,000	$ 13,000
Total intrinsic value of options exercisable	$ 30,000	$ 3,000
Outstanding, beginning of period, weighted average exercise price	$ 5.3	$ 5.73
Granted, weighted average exercise price	0	4.43
Terminated/Lapsed, weighted average exercise price	4.29	4.88
Exercised, weighted average exercise price	0	0
Outstanding, end of period, weighted average exercise price	5.46	5.3
Exercisable, end of period, weighted average exercise price	$ 5.54	$ 5.26
NonEmployee 2012 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, beginning of year	35,000	25,000
Granted	0	10,000
Terminated/Lapsed	0	0
Exercised	0	0
Outstanding, end of period	35,000	35,000
Exercisable, end of period	19,000	12,000
Weighted average fair value at grant date of options granted		$ 2.86
Total intrinsic value of options exercised
Total intrinsic value of options outstanding	$ 41,000	$ 3,000
Total intrinsic value of options exercisable	$ 21,000	$ 1,000
Outstanding, beginning of period, weighted average exercise price	$ 4.73	$ 4.88
Granted, weighted average exercise price	0	4.37
Terminated/Lapsed, weighted average exercise price	0	0
Exercised, weighted average exercise price	0	0
Outstanding, end of period, weighted average exercise price	4.73	4.73
Exercisable, end of period, weighted average exercise price	$ 4.77	$ 4.80
Employee Stock Option Plan 2002 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding, beginning of year	208,500	265,750
Granted	0	0
Terminated/Lapsed	(1,000)	(1,000)
Exercised	(67,500)	0
Outstanding, end of period	140,000	264,750
Exercisable, end of period	140,000	264,750
Weighted average fair value at grant date of options granted
Total intrinsic value of options exercised
Total intrinsic value of options outstanding	$ 9,000	$ 0
Total intrinsic value of options exercisable	$ 9,000	$ 0
Outstanding, beginning of period, weighted average exercise price	$ 6.86	$ 6.51
Granted, weighted average exercise price	0	0
Terminated/Lapsed, weighted average exercise price	6.02	6.02
Exercised, weighted average exercise price	5.73	0
Outstanding, end of period, weighted average exercise price	7.41	6.51
Exercisable, end of period, weighted average exercise price	$ 7.41	$ 6.51