Reserve for Doubtful Accounts

12 Months Ended

Dec. 31, 2019

Reserve for Doubtful Accounts [Abstract]

Reserve for Doubtful Accounts

Note 3. Reserve for Doubtful Accounts

The components of the reserve for doubtful accounts for the three years ended December 31 are as follows:

	2017	2018	2019
Reserve at beginning of year	$1,575,000	$1,100,000	$1,100,000
Amounts charged to expense	848,739	44,162	1,143,187
Amounts written off	(1,323,739)	(44,162)	(1,143,187)
Reserve at end of year	$1,100,000	$1,100,000	$1,100,000