Fair Value (Details 1) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
Sep. 30, 2019	Dec. 31, 2018
Loans Held At Fair Value [Member]
Balance at end of year	$ 5,887	$ 5,420
Loans Held At Fair Value [Member] \| Maxiimum [Member]
Constant repayment rate	23.24%	16.50%
Discount rate	10.37%	9.76%
Weighted average life	4 years 5 months 1 day	6 years 10 months 20 days
Project default rate	11.59%	10.12%
Minimum [Member] \| Loans Held At Fair Value [Member]
Constant repayment rate	0.00%	0.00%
Discount rate	7.95%	5.49%
Weighted average life	1 year 8 months 8 days	2 years 14 days
Project default rate	2.22%	1.07%
Fair Value, Inputs, Level 3 [Member] \| Servicing Assets [Member]
Balance at end of year	$ 254	$ 313
Fair Value, Inputs, Level 3 [Member] \| Servicing Assets [Member]
Balance at end of year	$ 254	$ 313
Fair Value, Inputs, Level 3 [Member] \| Minimum [Member] \| Servicing Assets [Member]
Constant repayment rate	7.24%	4.94%
Discount rate	8.71%	11.38%
Weighted average life	1 year 6 months 7 days	2 years 14 days
Fair Value, Inputs, Level 3 [Member] \| Maximum [Member] \| Servicing Assets [Member]
Constant repayment rate	21.96%	15.92%
Discount rate	26.59%	19.61%
Weighted average life	4 years 5 months 1 day	6 years 9 months 7 days

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- References

No definition available.

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- Definition

Weighted average life of securitized assets regardless of when the transfer occurred, 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/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(2)
-URI https://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719

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- Definition

Discount rate which is used to value residual cash flows generated by financial assets of a securitization, asset-backed financing arrangement, or similar transfer regardless of when the transfer occurred.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI https://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719

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- Definition

Fair value of an asset representing net future revenue from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 45
-Paragraph 2
-Subparagraph (b)
-URI https://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=6469459&loc=d3e122492-111745

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 50
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-URI https://asc.fasb.org/extlink&oid=128311188&loc=d3e122625-111746

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 50
-Section 45
-Paragraph 2
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745

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