Income Taxes (Narrative) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2012	Dec. 31, 2022
Proceeds from sale of common stock			$ 22,500,000
Net operating loss carry forwards	$ 22,089,000
Carryforwards utilize limit before the stock offering closed	163,000
Unutilized operating loss carryforwards that will expire	20,520,000
Reduced deferred tax assets and valuation allowance	6,977,000
Deferred tax liability to be recorded	$ 473,000
Effective tax rate	19.50%	18.50%
Additional bad debt deductions	$ 2,250,000
Deferred tax asset, valuation allowance	0
Deferred tax asset	4,399,000			$ 4,330,000
Unrecognized tax benefits	$ 0			$ 0
Minimum [Member]
Net operating loss carryforwards, expiration year	2024
Maximum [Member]
Net operating loss carryforwards, expiration year	2032