SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS

12 Months Ended

Dec. 31, 2017

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS [Abstract]

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS

Schedule II

Valuation and Qualifying Accounts

			Additions
Description	Balance at beginning of period		Charged to statement of income		Charged to other accounts		Deductions		Balance at end of period
Year ended December 31, 2017:
Allowance for doubtful accounts	$	52,000	$	-	$	-	$	10,000	$	42,000
Inventory Reserve	$	245,000	$	119,920	$	-	$	170,137	$	194,783
Year ended December 31, 2016:
Allowance for doubtful accounts	$	52,000	$	-	$	-	$	-	$	52,000
Inventory Reserve	$	218,000	$	221,478	$	-	$	194,478	$	245,000
Year ended December 31, 2015:
Allowance for doubtful accounts	$	52,000	$	-	$	-	$	-	$	52,000
Inventory Reserve	$	218,000	$	256,302	$	-	$	256,302	$	218,000