Basis of Presentation (Policies)	3 Months Ended
Mar. 31, 2019
Accounting Policies [Abstract]
Recent and Newly Adopted Accounting Pronouncements	Recent Accounting Pronouncements Allowance for Credit Losses In June 2016, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update, or ASU, No. 2016-13, "Financial Instruments — Credit Losses (Topic 326)," changing the impairment model for most financial instruments by requiring companies to recognize an allowance for expected losses, rather than incurred losses as required currently by the other-than-temporary impairment model. The ASU will apply to most financial assets measured at amortized cost and certain other instruments, including trade and other receivables, loans, available-for-sale and held-to-maturity debt securities, net investments in leases, and off-balance-sheet credit exposures. The ASU is effective for the Company on January 1, 2020, and will be applied as a cumulative adjustment to retained earnings as of the effective date. The Company is currently in the process of evaluating the impact of the adoption of this ASU on its consolidated financial statements. The Company's implementation efforts include, but are not limited to, identifying key interpretive issues, assessing its policies and processes, and evaluating related control activities to determine if modifications or enhancements may be required. The Company's accounts receivable balance is primarily composed of crop receivables. Based on historical experience with our current customers and periodic credit evaluations of our customers' financial conditions, we believe our credit risk is minimal. With regards to the marketable securities, as the Company limits its investment to securities with investment grade rating from Moody's or Standard and Poor's, and it generally does not sell securities before recovery of their amortized cost basis, we do not expect this ASU to have any material impact on its accounting of marketable securities. Fair Value of Financial Instruments In August 2018, the FASB issued ASU No. 2018-13, "Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement". This ASU removes certain disclosure requirements related to the fair value hierarchy, such as disclosure of amounts and reasons for transfers between Level 1 and Level 2, and adds new disclosure requirements, such as disclosure of the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurement. For the Company, the new standard will be effective on January 1, 2020. The Company does not expect this ASU to have any material impact on its consolidated financial statements, as the Company does not have financial instruments classified as Level 3. Retirement Benefits In August 2018, the FASB issued ASU No. 2018-14, "Changes to the Disclosure Requirements for Defined Benefit Plans." This ASU removes certain disclosure requirements, including the amounts in accumulated other comprehensive income expected to be recognized as components of net periodic benefit cost over the next fiscal year and the amount and timing of plan assets expected to be returned to the employer. This ASU also requires additional disclosures for the weighted average interest crediting rates for cash balance plans and explanations for significant gains and losses related to changes in the benefit plan obligation. This ASU is effective for fiscal years beginning after December 15, 2020. The Company is currently assessing the impact of this ASU on its consolidated financial statements and related disclosures. Newly Adopted Accounting Pronouncements Lease Accounting In February 2016, the FASB issued ASU No. 2016-02, "Leases." From the lessee's perspective, the new standard establishes a right-of-use, or ROU, model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement for a lessee. From the lessor's perspective, the new standard requires a lessor to classify leases as either sales-type, finance or operating. Entities are prohibited from using a full retrospective transition approach to adopt this guidance, and a modified retrospective approach is required to be used for all leases that exist at or commence after the beginning of the earliest comparative period presented. Entities are permitted to elect a package of expedients where an entity need not reassess (i) whether any expired or existing contracts are or contain leases, (ii) lease classification for any expired or existing leases, or (iii) initial direct costs for any existing leases. In January 2018, the FASB issued ASU No. 2018-01, "Land Easement Practical Expedient for Transition to Topic 842," which permits entities to elect a transition practical expedient to not assess land easements that exist or expired before the adoption of the new standard in order to reduce the costs and complexity of complying with the transition provisions. If this practical expedient is elected, entities are effectively allowed to grandfather the accounting for easements entered into prior to the adoption of the new standards. In July 2018, the FASB issued ASU No. 2018-11, "Targeted Improvements to Leases (Topic 842)," which allows entities to not apply the new leases standard in the comparative periods they present in their financial statements. Under this transition option, entities can continue to apply the legacy guidance in the comparative periods presented in the year they adopt the new standard. ASU No. 2018-11 also provides a practical expedient for lessors to combine the lease and non-lease components under certain circumstances to simplify lessor's implementation of the new guidance. The Accounting Standards Codification Topic 842: Leases, or ASC 842, became effective on January 1, 2019. The Company adopted the new standards using the modified retrospective method on January 1, 2019. The optional transition method was elected during this transition, and comparative information is not restated and will continue to be reported under the legacy guidance. The Company also elected the package of practical expedients and will account for its existing leases under the new guidance without reassessing its prior conclusions of lease identification, lease classification and initial direct costs. Lessee Impact: The Company currently leases several office copiers under 48-month lease terms. On January 1, 2019, an operating lease ROU asset and an operating lease liability were recorded on the consolidated balance sheets, both in the amount of $52,000, as a result of adopting the new guidance. The $52,000 was determined by calculating the present value of the future annual cash lease payments using a discount rate of 4.11%. The 4.11% discount rate represents the Company's incremental borrowing rate as of January 1, 2019. The implementation of the new standards did not have any impact on the consolidated statements of operations or the opening balance of retained earnings on the consolidated statements of equity. Lessor Impact: The Company elected the land easement practical expedient upon adoption of the new guidance and is thus permitted to continue its current accounting policy for land easements that exist or expired before the effective date of the adoption. The Company will evaluate new or modified land easements under ASC 842 beginning on the adoption date of the new guidance. Additionally, the Company elected the lessor's practical expedient and combined the lease and non-lease components due to the following criteria being met: (i) the timing and pattern of recognizing revenue for the lease components are the same as its associated non-lease components, (ii) the lease component, if accounted for separately, would be classified as an operating lease, and (iii) the lease component is the predominant component within the contract. The Company believes that combining the lease component, which is the lease revenue, and non-lease components such as common area maintenance revenue and provisions of real estate taxes and insurance, will provide more meaningful information as it is more reflective of the predominant component in the lease contracts. We expect no significant differences in the timing and pattern of revenue recognition under the new lease guidance for all our existing leases from the lessor's perspective. For new leases originated after the adoption date, we expect to capitalize less initial direct cost, as the definition of initial direct cost is narrower under the new guidance. Certain costs, such as legal costs incurred, were eligible for capitalization under the legacy guidance, but are no longer eligible for capitalization under the new standards. The amounts capitalized as legal costs have been de minimis in the past and would not have a material impact to our results of operations. Derivatives and Hedging In August 2017, the FASB issued ASU No. 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities," which amends the hedge accounting model and allows entities to better portray the economics of their risk management activities in their financial statements. This guidance eliminates the requirement to separately measure and report hedge ineffectiveness and requires the entire change in the fair value of a hedging instrument to be presented in the same income statement line as hedged item. The Company adopted ASU No. 2017-12 on January 1, 2019 using a modified retrospective approach. The Company utilizes an interest rate swap to hedge its exposure to variable interest rate associated with borrowings based on London Interbank Offered Rate (LIBOR). The interest rate swap is designated as a cash flow hedge, and the hedge has been highly effective since inception. Therefore, no cumulative effective adjustment of previously recognized ineffectiveness was required to be recorded as a result of adopting this new guidance. The adoption of this guidance did not have an impact on the Company's consolidated financial statements. In October 2018, the FASB issued ASU No. 2018-16, "Derivatives and Hedging (Topic 815): Inclusion of the Secured Overnight Financing Rate (SOFR) Overnight Index Swap (OIS) Rate as a Benchmark Interest Rate for Hedge Accounting Purposes". This ASU identified SOFR as the preferred reference rate alternative to LIBOR. The Company adopted this new guidance on January 1, 2019, and the adoption did not have an impact on the Company's consolidated financial statements. For a more detailed discussion of the benchmark interest rate, see Part I, Item 1A, "Risk Factors" included in the Annual Report on Form 10-K for the year ended December 31, 2018. Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income In February 2018, the FASB issued ASU No. 2018-02, "Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income," which allows a reclassification from accumulated other comprehensive income, or AOCI, to retained earnings for stranded tax effects resulting from the U.S. government’s comprehensive tax legislation enacted in December 2017, commonly referred to as U.S. Tax Reform. The guidance became effective for the Company on January 1, 2019, and the Company adopted the provisions of the guidance as of the effective date. The Company did not make an election to reclassify the income tax effects of the U.S Tax Reform from AOCI to retained earnings. Please also refer to Critical Accounting Policies in Part I, Item 2 of this report for discussion on changes to critical accounting policies.

Recent Accounting Pronouncements

Allowance for Credit Losses

In June 2016, the Financial Accounting Standards Board, or FASB, issued Accounting Standards Update, or ASU, No. 2016-13, "Financial Instruments — Credit Losses (Topic 326)," changing the impairment model for most financial instruments by requiring companies to recognize an allowance for expected losses, rather than incurred losses as required currently by the other-than-temporary impairment model. The ASU will apply to most financial assets measured at amortized cost and certain other instruments, including trade and other receivables, loans, available-for-sale and held-to-maturity debt securities, net investments in leases, and off-balance-sheet credit exposures. The ASU is effective for the Company on January 1, 2020, and will be applied as a cumulative adjustment to retained earnings as of the effective date.

The Company is currently in the process of evaluating the impact of the adoption of this ASU on its consolidated financial statements. The Company's implementation efforts include, but are not limited to, identifying key interpretive issues, assessing its policies and processes, and evaluating related control activities to determine if modifications or enhancements may be required. The Company's accounts receivable balance is primarily composed of crop receivables. Based on historical experience with our current customers and periodic credit evaluations of our customers' financial conditions, we believe our credit risk is minimal. With regards to the marketable securities, as the Company limits its investment to securities with investment grade rating from Moody's or Standard and Poor's, and it generally does not sell securities before recovery of their amortized cost basis, we do not expect this ASU to have any material impact on its accounting of marketable securities.

Fair Value of Financial Instruments

In August 2018, the FASB issued ASU No. 2018-13, "Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement". This ASU removes certain disclosure requirements related to the fair value hierarchy, such as disclosure of amounts and reasons for transfers between Level 1 and Level 2, and adds new disclosure requirements, such as disclosure of the range and weighted average of significant unobservable inputs used to develop Level 3 fair value measurement. For the Company, the new standard will be effective on January 1, 2020. The Company does not expect this ASU to have any material impact on its consolidated financial statements, as the Company does not have financial instruments classified as Level 3.

Retirement Benefits

In August 2018, the FASB issued ASU No. 2018-14, "Changes to the Disclosure Requirements for Defined Benefit Plans." This ASU removes certain disclosure requirements, including the amounts in accumulated other comprehensive income expected to be recognized as components of net periodic benefit cost over the next fiscal year and the amount and timing of plan assets expected to be returned to the employer. This ASU also requires additional disclosures for the weighted average interest crediting rates for cash balance plans and explanations for significant gains and losses related to changes in the benefit plan obligation. This ASU is effective for fiscal years beginning after December 15, 2020. The Company is currently assessing the impact of this ASU on its consolidated financial statements and related disclosures.

Newly Adopted Accounting Pronouncements

Lease Accounting

In February 2016, the FASB issued ASU No. 2016-02, "Leases." From the lessee's perspective, the new standard establishes a right-of-use, or ROU, model that requires a lessee to record a ROU asset and a lease liability on the balance sheet for all leases with terms longer than 12 months. Leases will be classified as either finance or operating, with classification affecting the pattern of expense recognition in the income statement for a lessee. From the lessor's perspective, the new standard requires a lessor to classify leases as either sales-type, finance or operating. Entities are prohibited from using a full retrospective transition approach to adopt this guidance, and a modified retrospective approach is required to be used for all leases that exist at or commence after the beginning of the earliest comparative period presented. Entities are permitted to elect a package of expedients where an entity need not reassess (i) whether any expired or existing contracts are or contain leases, (ii) lease classification for any expired or existing leases, or (iii) initial direct costs for any existing leases.

In January 2018, the FASB issued ASU No. 2018-01, "Land Easement Practical Expedient for Transition to Topic 842," which permits entities to elect a transition practical expedient to not assess land easements that exist or expired before the adoption of the new standard in order to reduce the costs and complexity of complying with the transition provisions. If this practical expedient is elected, entities are effectively allowed to grandfather the accounting for easements entered into prior to the adoption of the new standards.

In July 2018, the FASB issued ASU No. 2018-11, "Targeted Improvements to Leases (Topic 842)," which allows entities to not apply the new leases standard in the comparative periods they present in their financial statements. Under this transition option, entities can continue to apply the legacy guidance in the comparative periods presented in the year they adopt the new standard. ASU No. 2018-11 also provides a practical expedient for lessors to combine the lease and non-lease components under certain circumstances to simplify lessor's implementation of the new guidance.

The Accounting Standards Codification Topic 842: Leases, or ASC 842, became effective on January 1, 2019. The Company adopted the new standards using the modified retrospective method on January 1, 2019. The optional transition method was elected during this transition, and comparative information is not restated and will continue to be reported under the legacy guidance. The Company also elected the package of practical expedients and will account for its existing leases under the new guidance without reassessing its prior conclusions of lease identification, lease classification and initial direct costs.

Lessee Impact:

The Company currently leases several office copiers under 48-month lease terms. On January 1, 2019, an operating lease ROU asset and an operating lease liability were recorded on the consolidated balance sheets, both in the amount of $52,000, as a result of adopting the new guidance. The $52,000 was determined by calculating the present value of the future annual cash lease payments using a discount rate of 4.11%. The 4.11% discount rate represents the Company's incremental borrowing rate as of January 1, 2019. The implementation of the new standards did not have any impact on the consolidated statements of operations or the opening balance of retained earnings on the consolidated statements of equity.

Lessor Impact:

The Company elected the land easement practical expedient upon adoption of the new guidance and is thus permitted to continue its current accounting policy for land easements that exist or expired before the effective date of the adoption. The Company will evaluate new or modified land easements under ASC 842 beginning on the adoption date of the new guidance.

Additionally, the Company elected the lessor's practical expedient and combined the lease and non-lease components due to the following criteria being met: (i) the timing and pattern of recognizing revenue for the lease components are the same as its associated non-lease components, (ii) the lease component, if accounted for separately, would be classified as an operating lease, and (iii) the lease component is the predominant component within the contract. The Company believes that combining the lease component, which is the lease revenue, and non-lease components such as common area maintenance revenue and provisions of real estate taxes and insurance, will provide more meaningful information as it is more reflective of the predominant component in the lease contracts.

We expect no significant differences in the timing and pattern of revenue recognition under the new lease guidance for all our existing leases from the lessor's perspective. For new leases originated after the adoption date, we expect to capitalize less initial direct cost, as the definition of initial direct cost is narrower under the new guidance. Certain costs, such as legal costs incurred, were eligible for capitalization under the legacy guidance, but are no longer eligible for capitalization under the new standards. The amounts capitalized as legal costs have been de minimis in the past and would not have a material impact to our results of operations.

Derivatives and Hedging

In August 2017, the FASB issued ASU No. 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities," which amends the hedge accounting model and allows entities to better portray the economics of their risk management activities in their financial statements. This guidance eliminates the requirement to separately measure and report hedge ineffectiveness and requires the entire change in the fair value of a hedging instrument to be presented in the same income statement line as hedged item. The Company adopted ASU No. 2017-12 on January 1, 2019 using a modified retrospective approach. The Company utilizes an interest rate swap to hedge its exposure to variable interest rate associated with borrowings based on London Interbank Offered Rate (LIBOR). The interest rate swap is designated as a cash flow hedge, and the hedge has been highly effective since inception. Therefore, no cumulative effective adjustment of previously recognized ineffectiveness was required to be recorded as a result of adopting this new guidance. The adoption of this guidance did not have an impact on the Company's consolidated financial statements.

In October 2018, the FASB issued ASU No. 2018-16, "Derivatives and Hedging (Topic 815): Inclusion of the Secured Overnight Financing Rate (SOFR) Overnight Index Swap (OIS) Rate as a Benchmark Interest Rate for Hedge Accounting Purposes". This ASU identified SOFR as the preferred reference rate alternative to LIBOR. The Company adopted this new guidance on January 1, 2019, and the adoption did not have an impact on the Company's consolidated financial statements. For a more detailed discussion of the benchmark interest rate, see Part I, Item 1A, "Risk Factors" included in the Annual Report on Form 10-K for the year ended December 31, 2018.

Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income

In February 2018, the FASB issued ASU No. 2018-02, "Income Statement — Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income," which allows a reclassification from accumulated other comprehensive income, or AOCI, to retained earnings for stranded tax effects resulting from the U.S. government’s comprehensive tax legislation enacted in December 2017, commonly referred to as U.S. Tax Reform. The guidance became effective for the Company on January 1, 2019, and the Company adopted the provisions of the guidance as of the effective date. The Company did not make an election to reclassify the income tax effects of the U.S Tax Reform from AOCI to retained earnings.

Please also refer to Critical Accounting Policies in Part I, Item 2 of this report for discussion on changes to critical accounting policies.