Notes Payable - Related Party (Narrative) (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Notes Payable [Abstract]
Interest expense	$ 52,000	$ 60,000
Cash paid	30,000	$ 30,000
Interest payable	$ 22,000		$ 0