STOCK-BASED COMPENSATION (Summary Of Information Regarding Stock Option Plans) (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Number of Shares
Options outstanding, beginning of year (in shares)	49,742	69,123	69,123
Options granted (in shares)	0	0	0
Options expired (in shares)			(5,077)
Options forfeited (in shares)			(14,304)
Options outstanding, end of year (in shares)	49,742		49,742
Options exercisable, end of year (in shares)	45,698
Weighted Average Exercise Price per Share
Options outstanding, beginning of year (in dollars per share)	$ 11.17	$ 11.10	$ 11.10
Options granted (in dollars per share)			0.00
Options expired (in dollars per share)			11.37
Options forfeited (in dollars per share)			10.76
Options outstanding, end of year (in dollars per share)	11.17		$ 11.17
Options exercisable, end of year (in dollars per share)	$ 11.02
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Weighted Average Contractual Term, Outstanding, end of year	2 months 1 day
Weighted Average Contractual Term, Exercisable, end of year	5 years 1 month 6 days
Aggregate Intrinsic Value, Outstanding, end of year	$ 290,041
Aggregate Intrinsic Value, Exercisable, end of year	$ 273,178