Assets Held For Sale (Narrative) (Details)	1 Months Ended	12 Months Ended
Jan. 31, 2016 ft² item	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Assets Held For Sale [Abstract]
Number of unoccupied buildings with letter of intent to sale \| item	2
Area of building \| ft²	52,000
Assets held for sale, net		$ 0	$ 688,750
Proceeds from sale of property		$ 663,334	$ 0

Amount of assets held-for-sale that are not part of a disposal group, expected to be sold within a year or the normal operating cycle, if longer.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 15
-Paragraph 4
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=77912953&loc=d3e400-110220

Name:	us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant