Employee Retirement and Benefit Plans (Details Narrative) - USD ($)	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Employee Retirement and Benefit Plans
Employees compensation	$ 917,000	$ 845,000	$ 752,000
Deferred compensation	$ 1,544,000	$ 3,266,000

The increase (decrease) during the reporting period in the obligation created by employee agreements whereby earned compensation will be paid in the future.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

Name:	us-gaap_IncreaseDecreaseInDeferredCompensation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration