Income Taxes (Narrative) (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Provision (benefit) for (from) income taxes	$ (486,000)	$ 349,000	$ 39,000	$ 1,365,000
Income before provision for income taxes	$ 95,000	$ 1,622,000	$ 2,095,000	$ 4,939,000
Effective tax rate	(511.60%)	21.50%	1.90%	27.60%
Statutory tax rate	21.00%	21.00%	21.00%
Uncertain tax position			$ 1,041,000
Income tax refund expected in quarter one of 2021	$ 248,000		$ 248,000