XML 52 R41.htm IDEA: XBRL DOCUMENT
v3.7.0.1

Compensatory Equity Incentive Plan and Other Equity Incentives (Details Narrative) - USD ($) | 9 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Discount on market value of shares ESOP | $ 1,927 | $ 2,303
Discount rate on ESOP shares | 10.00% |
Forfeiture Rate, Options and RSUs | 20.00% | 20.00%
Exercisable period | 10 years |
Intrinsic value of options outstanding and exercisable | $ 900,135 | $ 250,348
Fair value of options vested | 406,450 | 37,415
Intrinsic Value of RSUs exercised | 79,395 | 0
Intrinsic Value of RSUs Outstanding and Exercisable | 2,931,444 | 1,757,796
Fair value of RSUs Vested | 333,117 | $ 388,858
Unrecognized compensation costs | $ 557,103 |
Lower Limit [Member] |  |
Vesting period of options and RSUs | 2 years |
Upper Limit [Member] |  |
Vesting period of options and RSUs | 4 years |
2014 Employee Stock Purchase Plan [Member] |  |
Threshold percentage of compensation | 15.00% |
Percentage of market value shares may be purchased at | 85.00% |
Yearly limit on purchase of common stock, value | $ 25,000 |
Yearly limit on purchase of common stock, shares | 8,000 |
Six month limit on purchase of common stock, shares | 4,000 |

X
- Definition The percentage discount given to employees purchasing stock under plan. + References No definition available. + Details
Name: | lpth_DiscountRateOnEsopShares
Namespace Prefix: | lpth_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The upper limit percentage of an employee's compensation which may be used to purchase common stock through payroll deductions under the 2004 Employee Stock Purchase Plan. + References No definition available. + Details
Name: | lpth_ESOPCompensationPercentageThreshold
Namespace Prefix: | lpth_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The lower limit percentage against market value at which an employee may purchase shares of common stock through payroll deductions under the 2004 Employee Stock Purchase Plan. + References No definition available. + Details
Name: | lpth_ESOPPercentageMarketValue
Namespace Prefix: | lpth_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The discount on the purchase of shares of common stock due to the spread against market value under the 2004 Employee Stock Purchase Plan that was recognized during the period and recorded in selling, general and administrative expense. + References No definition available. + Details
Name: | lpth_EmployeeStockOwnershipPlanESOPDiscount
Namespace Prefix: | lpth_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The assumed forfeiture rate used in calculating the fair value of options and RSU with both performance and service conditions. + References No definition available. + Details
Name: | lpth_FairValueForfeitureRateOptions
Namespace Prefix: | lpth_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The six-month limit as to the number of shares of common stock which may be purchased by a participant under the 2004 Employee Stock Purchase Plan. + References No definition available. + Details
Name: | lpth_SixMonthLimitOnPurchaseOfCommonStockShares
Namespace Prefix: | lpth_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The yearly limit as to the number of shares of common stock which may be purchased by a participant under the 2004 Employee Stock Purchase Plan. + References No definition available. + Details
Name: | lpth_YearlyLimitOnPurchaseOfCommonStockShares
Namespace Prefix: | lpth_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The yearly limit as to the total value of shares of common stock which may be purchased by a participant under the 2004 Employee Stock Purchase Plan. + References No definition available. + Details
Name: | lpth_YearlyLimitOnPurchaseOfCommonStockValue
Namespace Prefix: | lpth_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Unrecognized cost of unvested share-based compensation awards. + 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 (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardAwardVestingPeriod1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash. + 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
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodTotalFairValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- 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
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Intrinsic value of equity-based compensation awards outstanding. Excludes stock and unit options. + References No definition available. + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardEquityInstrumentsOtherThanOptionsAggregateIntrinsicValueOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + 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 (a)(2) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardExpirationPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. + 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
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value of options vested. Excludes equity instruments other than options, for example, but not limited to, share units, stock appreciation rights, restricted stock. + 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) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PlanNameAxis=lpth_EmployeeStock1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |