Schedule II - Unaudited Valuation and Qualifying Accounts (Tables)

12 Months Ended

Dec. 31, 2015

Notes Tables

Summary of Valuation Allowance [Table Text Block]

	Year Ended December 31,
ALLOWANCE FOR DOUBTFUL ACCOUNTS	2015			2014			2013
Beginning balance	$	103		$	141		$	173
Additions charged to expense	$	109		$	68		$	44
Deductions	$	(108	)	$	(106	)	$	(76	)
Balance at end of year	$	4		$	103		$	141
INVENTORY OBSOLESCENCE RESERVE:
Beginning balance	$	100		$	1,463		$	1,377
Additions charged to expense	$	138		$	83		$	1,822
Deductions	$	(172	)	$	(1,446	)	$	(1,736	)
Balance at end of year	$	66		$	100		$	1,463
DEFERRED TAX ASSET VALUATION ALLOWANCE:
Beginning balance	$	4,703		$	2,303		$	2,528
Additions charged (credited to) to expense	$	363		$	2,400		$	(225	)
Balance at end of year	$	5,066		$	4,703		$	2,303