Quarterly Data (Tables)

12 Months Ended

Dec. 31, 2012

Quarterly Financial Information Disclosure [Abstract]

Quarterly Data

Quarters (000's omitted, except per share data)
2012	First		Second		Third		Fourth		Total
Net sales	$	16,878	$	27,594	$	20,363	$	19,535	$	84,370
Cost of goods sold		10,934		17,773		12,937		12,979		54,623
Net income		260		2,061		798		430		3,549
Basic earnings per share	$	0.08	$	0.66	$	0.26	$	0.14	$	1.14
Diluted earnings per share	$	0.08	$	0.66	$	0.26	$	0.13	$	1.13
Dividends per share	$	0.07	$	0.07	$	0.07	$	0.07	$	0.28
2011	First		Second		Third		Fourth		Total
Net sales	$	14,401	$	24,029	$	19,036	$	15,836	$	73,302
Cost of goods sold		9,093		15,346		12,396		10,142		46,977
Net income		120		1,743		682		266		2,811
Basic earnings per share	$	0.04	$	0.56	$	0.22	$	0.08	$	0.91
Diluted earnings per share	$	0.04	$	0.55	$	0.22	$	0.09	$	0.91
Dividends per share	$	0.06	$	0.06	$	0.07	$	0.07	$	0.26