Intangible Assets (Narrative) (Details)	Mar. 31, 2021 USD ($)
Intangible Assets, Net (Excluding Goodwill) [Abstract]
Amortization expense, remainder of 2021	$ 116,000
Amortization expense, 2022	113,000
Amortization expense, 2023	64,000
Amortization expense, 2024	$ 10,000

Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized in the next rolling twelve months following the latest balance sheet. For interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

No definition available.

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