Schedule of Valuation and Qualifying Accounts (Tables)

12 Months Ended

Dec. 31, 2017

Tables/Schedules

Schedule of Valuation and Qualifying Accounts

	December 31, 2017	December 31, 2016
Allowance for Doubtful Accounts:
Balance at beginning of year………………………….	$ 150,000	$   150,000
Charges to statement of income……………………...	6,435	1,566
Write-offs………………………………………………...	(16,435)	(1,566)
Balance at end of year…………………………………	$   140,000	$   150,000

	December 31, 2017	December 31, 2016
Inventory Valuation Reserves:
Balance at beginning of year………………………….	$ 562,000	$   577,000
Charges to statement of income……………………...	75,023	80,793
Write-offs………………………………………………...	(73,023)	(95,793)
Balance at end of year…………………………………	$   564,000	$   562,000