Stock-Based Compensation - Performance Share Award (Details) - USD ($)	1 Months Ended	3 Months Ended
Oct. 31, 2019	Sep. 30, 2019	Mar. 31, 2020	Mar. 31, 2019
Share-Based Compensation Arrangement By Share-Based Payment Award [Line Items]
Total stock-based compensation expense			$ 83,000	$ 14,000
Performance Share Awards \| 2001 Nonqualified Stock Plan \| Officer
Share-Based Compensation Arrangement By Share-Based Payment Award [Line Items]
Number of shares granted	10,000	20,000
Total stock-based compensation expense	$ 15,000	$ 31,000
Share Based Compensation Expense for the Total Grant	29,000	55,000
Unamortized Share Based Compensation Charges	$ 14,000	$ 24,000

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5047-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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