CONSOLIDATED STATEMENTS OF INCOME (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Net sales	$ 92,045,000	$ 83,196,000	$ 79,815,000
Cost of goods sold	64,471,000	58,869,000	55,708,000
Gross profit	27,574,000	24,327,000	24,107,000
Selling, general and administrative expense	18,246,000	17,747,000	16,560,000
Write-down and loss on disposal of assets held for sale		1,162,000	1,135,000
Operating income	9,328,000	5,418,000	6,412,000
Interest income	40,000		358,000
Interest expense	(127,000)	(479,000)	(722,000)
Income from continuing operations before income taxes	9,241,000	4,939,000	6,048,000
Provision for income taxes	3,226,000	1,415,000	2,544,000
Income from continuing operations	6,015,000	3,524,000	3,504,000
Discontinued operations, net of tax:
Income from operations		3,800,000	4,169,000
Gain on disposal of discontinued operations		27,637,000
Net income	$ 6,015,000	$ 34,961,000	$ 7,673,000
Basic and diluted earnings per common share:
Continuing operations	$ 0.49	$ 0.28	$ 0.28
Discontinued operations:
Income from operations		$ 0.31	$ 0.34
Gain on disposal of discontinued operations		$ 2.23
Net income	$ 0.49	$ 2.82	$ 0.62
Cash dividends per share	$ 0.275	$ 0.50	$ 0.50
Basic and diluted weighted average shares outstanding	12,395	12,390	12,382