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Stock Options (Detail) - USD ($) | 12 Months Ended
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Jun. 30, 2016 | Jun. 30, 2015
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 | 15,000 | 44,000
Terminated/Lapsed | (15,000) | (10,000)
Exercised | 0 | 0
Outstanding, end of year | 112,500 | 112,500
Exercisable, end of year | 55,700 | 27,500
Weighted average fair value at grant date of options granted | $ 3.86 | $ 2.82
Total intrinsic value of options exercised |  |
Total intrinsic value of options outstanding | 93,000 | 73,000
Total intrinsic value of options exercisable | $ 43,000 | $ 18,000
Outstanding, beginning of year, weighted average exercise price | $ 5.3 | $ 5.73
Granted, weighted average exercise price | 6.05 | 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 | 5.54 | 5.3
Exercisable, end of period, weighted average exercise price | $ 5.59 | $ 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 year | 35,000 | 35,000
Exercisable, end of year | 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 | 57,000 | 35,000
Total intrinsic value of options exercisable | $ 30,000 | $ 11,000
Outstanding, beginning of year, 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 | (38,500) | (57,250)
Exercised | (67,500) | 0
Outstanding, end of year | 102,500 | 208,500
Exercisable, end of year | 102,500 | 208,500
Weighted average fair value at grant date of options granted |  |
Total intrinsic value of options exercised | $ 42,000 |
Total intrinsic value of options outstanding | 40,000 | 6,000
Total intrinsic value of options exercisable | $ 40,000 | $ 6,000
Outstanding, beginning of year, weighted average exercise price | $ 6.86 | $ 6.51
Granted, weighted average exercise price | 0 | 0
Terminated/Lapsed, weighted average exercise price | 11.03 | 5.24
Exercised, weighted average exercise price | 5.73 | 0
Outstanding, end of period, weighted average exercise price | 6.04 | 6.86
Exercisable, end of period, weighted average exercise price | $ 6.04 | $ 6.86

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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Gross number of share options (or share units) granted during the period. + References No definition available. + Details
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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- Definition Number of options outstanding, including both vested and non-vested options. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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