Related Party Transactions (Affiliates Earned Commissions and Billed for Reimbursements Pursuant to Operating Agreement (Details)	12 Months Ended
Dec. 31, 2016 USD ($)
Related Party Transactions [Abstract]
Selling commissions, equal to 9% of the selling price of the Limited Liability Company Units, deducted from Other Members capital	$ 1,327,641
Reimbursement of other syndication costs to Managing Member and/or affiliates, deducted from Other Members capital	885,094
Administrative costs reimbursed to Managing Member and/or affiliates	74,451
Asset management fees to Managing Member	41,204
Acquisition and initial direct costs paid to Managing Member	358,737
Related party transaction, total	$ 2,687,127
Selling commission rate	9.00%

Acquisition Fees and Initial Direct Costs, Related Party

No definition available.

Name:	cik0001640982_AcquisitionFeesAndInitialDirectCostsRelatedParty
Namespace Prefix:	cik0001640982_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The aggregate costs related to asset management fees earned by the Manager/General Partner during the reporting period.

+ References

No definition available.

+ Details

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Namespace Prefix:	cik0001640982_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

The reimbursement of costs incurred by the General Partner, Manager or Affiliates on behalf of the Fund. Such costs may be direct or indirect, and are repaid to the respective party.

+ References

No definition available.

+ Details

Name:	cik0001640982_CostsReimbursedToGeneralPartnerManagerOrAffiliates
Namespace Prefix:	cik0001640982_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Percentage of selling commissions to selling price.

+ References

No definition available.

+ Details

Name:	cik0001640982_PercentageOfSellingCommissionsToSellingPrice
Namespace Prefix:	cik0001640982_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Reimbursement of other syndication costs to Managing Member and/or affiliates, deducted from Other Members capital.

+ References

No definition available.

+ Details

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Namespace Prefix:	cik0001640982_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

+ Details

Name:	us-gaap_RelatedPartyTransactionExpensesFromTransactionsWithRelatedParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Primarily represents commissions incurred in the period based upon the sale by commissioned employees or third parties of the entity's goods or services, and fees for sales assistance or product enhancements performed by third parties (such as a distributor or value added reseller).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.4)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

+ Details

Name:	us-gaap_SalesCommissionsAndFees
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration