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Summary Accounting Policies - Leases - As Lessee - Minimum Future Lease Payments (Details) - USD ($)	Mar. 31, 2019	Dec. 31, 2018
Minimum future lease payments under ASC 842
From April 1 - December 31, 2019	$ 317,000
For the year ended December 31, 2020	464,000
For the year ended December 31, 2021	464,000
For the year ended December 31, 2022	464,000
For the year ended December 31, 2023	464,000
For the year ended December 31, 2024	512,000
Thereafter	3,086,000
Total undiscounted cash flows	5,771,000
Present value discount	(1,441,000)
Lease liability	$ 4,330,000
Ground Leases through July 2019
Minimum future lease payments under ASC 840
Minimum future lease payments		$ 371,000
Ground Leases through March 3, 2020
Minimum future lease payments under ASC 840
Minimum future lease payments		$ 464,000

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- Definition

Amount of lessee's undiscounted obligation for lease payments for operating lease, due after sixth fiscal year following latest fiscal year.

+ References

No definition available.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fifth fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due in fourth fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease, due in third fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments for operating lease having an initial or remaining lease term in excess of one year due in remainder of fiscal year following latest fiscal year.

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Amount of lessee's undiscounted obligation for lease payments in excess of discounted obligation for lease payments for operating lease.

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