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v2.4.1.9

Series B Mandatorily Redeemable Preferred Stock (Details) (USD $) | 1 Months Ended |  |
--- | --- | --- | ---
Aug. 31, 2014 | Dec. 31, 2014 | Dec. 31, 2013
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items] |  |  |
Deferred financing costs |  | $ 1,748,000 us-gaap_DeferredFinanceCostsNet | $ 1,148,000 us-gaap_DeferredFinanceCostsNet
Mandatorily Redeemable Preferred Stock [Member] | Series B Preferred Stock [Member] |  |  |
Financial Instruments Subject to Mandatory Redemption by Settlement Terms [Line Items] |  |  |
Financial Instruments Subject to Mandatory Redemption, Captial Contributions | 40,000,000 netr_FinancialInstrumentsSubjectToMandatoryRedemptionCaptialContributions / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_MandatorilyRedeemablePreferredStockMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |  |
Preferred stock shares issued (in shares) | 16,600 us-gaap_PreferredStockSharesIssued / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_MandatorilyRedeemablePreferredStockMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |  |
Preferred stock, par or stated value (in dollars per share) | $ 0.01 us-gaap_PreferredStockParOrStatedValuePerShare / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_MandatorilyRedeemablePreferredStockMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |  |
Liquidation preference per share (in dollars per share) | $ 1,000 us-gaap_PreferredStockLiquidationPreference / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_MandatorilyRedeemablePreferredStockMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |  |
Financial Instruments Subject to Mandatory Redemption, Return On Funds Invested | 14.00%netr_FinancialInstrumentsSubjectToMandatoryRedemptionReturnOnFundsInvested / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_MandatorilyRedeemablePreferredStockMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |  |
Financial Instruments Subject to Mandatory Redemption, Monthly Payout, Percent | 10.00%netr_FinancialInstrumentsSubjectToMandatoryRedemptionMonthlyPayoutPercent / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_MandatorilyRedeemablePreferredStockMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |  |
Financial Instruments Subject to Mandatory Redemption, Monthly Percent Accrued | 4.00%netr_FinancialInstrumentsSubjectToMandatoryRedemptionMonthlyPercentAccrued / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_MandatorilyRedeemablePreferredStockMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |  |
Deferred financing costs | 2,700,000 us-gaap_DeferredFinanceCostsNet / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_MandatorilyRedeemablePreferredStockMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |  |
Interest expense | $ 380,000 us-gaap_InterestExpense / us-gaap_ScheduleOfSharesSubjectToMandatoryRedemptionBySettlementTermsAxis = us-gaap_MandatorilyRedeemablePreferredStockMember / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember |  |

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- Definition The percentage of funds to be paid out based on the return on funds invested. + References No definition available. + Details
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- Definition Monthly percentage accrued and compound monthly to be paid out at the redemption date. + References No definition available. + Details
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- Definition The return on funds invested for the mandatorily reedemable preferred stock. + References No definition available. + Details
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- Definition For an unclassified balance sheet, the carrying amount (net of accumulated amortization) as of the balance sheet date of capitalized costs associated with the issuance of debt instruments (for example, legal, accounting, underwriting, printing, and registration costs) that will be charged against earnings over the life of the debt instruments to which such costs pertain. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28555-108399 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 17 -Article 5 + Details
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- Definition Amount of the cost of borrowed funds accounted for as interest expense. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.9) -URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 9 -Article 9 + Details
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- Definition The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29 -Article 5 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph d -Article 4 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(d)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 + Details
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- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29 -Article 5 + Details
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- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.28) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29 -Article 5 + Details
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