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Investment in Sales-Type Leases, Net (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Investment in Sales-Type Leases, Net [Abstract]
Total future minimum lease payments receivable	$ 227,863,380	$ 218,176,104
Less: executory cost	(69,291,742)	(66,443,813)
Less: unearned interest	(28,842,316)	(33,638,086)
Less: realized interest income but not yet received	(10,871,828)	(6,450,202)
Less: allowance for net investment receivable	(1,976,750)
Investment in sales-type leases, net	116,880,744	111,644,003
Current portion	14,462,637	13,076,516
Noncurrent portion	$ 102,418,107	$ 100,628,588

X

- Definition

Allowance for net investment receivable.

+ References

No definition available.

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- Definition

Capital Leases Net Investment In Sales Type Leases And Direct Financing Leases realized interest income but not yet received.

+ References

No definition available.

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- Definition

Capital Leases Net Investment In Sales Type Leases And Direct Financing Leases Unearned Income

+ References

No definition available.

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- Definition

Amount of minimum lease payments to be received by the lessor for capital leases.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84165051&loc=d3e45377-112738

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- Definition

The net amount due within one year of the balance sheet date or the normal operating cycle, if longer, consisting of: (a) minimum lease payments on sales type leases and (b) unguaranteed residual value; less: (i) executory costs, (ii) unearned income, and (iii) the accumulated allowance for uncollectible minimum lease payments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84165051&loc=d3e45377-112738

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- Definition

The net amount due after one year of the balance sheet date or beyond the normal operating cycle, if longer, consisting of: (a) minimum lease payments on sales type leases, and (b) unguaranteed residual value; less: (i) executory costs, (ii) unearned income, and (iii) the accumulated allowance for uncollectible minimum lease payments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84165051&loc=d3e45377-112738

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- Definition

The net investment in sales type leases as of the balance sheet date consisting of: (a) minimum lease payments on sales type leases and (b) unguaranteed residual value; less: (i) executory costs, (ii) unearned income, and (iii) the accumulated allowance for uncollectible minimum lease payments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=84165051&loc=d3e45377-112738

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- Definition

Estimated remaining costs to be incurred to service the sales-type lease, such as taxes, maintenance and insurance and the profit thereon, that are included in the minimum lease payments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 4
-Subparagraph (a)(1)(i)
-URI http://asc.fasb.org/extlink&oid=84165051&loc=d3e45377-112738

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