Consolidated Statements of Cash Flows (USD $)	12 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Jan. 01, 2011
Operating Activities
Net income	$ 8,625,800	$ 5,504,930	$ 5,543,005
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,439,800	3,707,216	3,942,639
(Gain)/loss on sale of equipment and other assets	(1,500)	(1,602)	113,026
Provision for doubtful accounts	147,313	44,502	177,186
Deferred income taxes	1,101,701	1,847,272	526,173
Issuance of Common Stock for directors' fees	24,609	24,600	24,594
Changes in operating assets and liabilities:
Accounts receivable	307,524	(2,470,834)	(1,047,724)
Inventories	586,576	(1,825,171)	(3,400,662)
Prepaid expenses and other	(24,741)	10,870	(534,465)
Prepaid pension cost	(865,831)	(4,924,402)	1,491,944
Recoverable taxes receivable	(510,683)	(647,949)	0
Other assets	(124,598)	(81,750)	(140,918)
Accounts payable	(889,663)	960,205	2,061,171
Accrued compensation	439,537	14,802	1,146,355
Other accrued expenses	1,389,988	(716,233)	(401,052)
Net cash provided by operating activities	13,645,832	1,446,456	9,501,272
Investing Activities
Purchases of property, plant and equipment	(4,216,970)	(3,394,726)	(4,733,244)
Proceeds from sale of equipment and other assets	44,184	4,000	275
Net cash used in investing activities	(4,172,786)	(3,390,726)	(4,732,969)
Financing Activities
Principal payments on long-term debt	(1,250,000)	(714,286)	(11,964,286)
Proceeds from issuance of long-term debt	5,000,000	0	5,000,000
Principal payments on revolving credit loan	(3,000,000)
Proceeds from revolving credit loan	0	3,000,000	0
Proceeds from sales of Common Stock	61,110	651,390	1,348,585
Tax benefit from disqualifying disposition of incentive stock options and exercise of non-qualified stock options	0	106,471	107,662
Purchases of Common Stock for treasury	0	0	(730,307)
Dividends paid	(3,108,577)	(2,224,187)	(3,181,587)
Net cash (used in) provided by financing activities	(2,297,467)	819,388	(9,419,933)
Effect of exchange rate changes on cash	159,268	47,571	129,565
Net change in cash and cash equivalents	7,334,847	(1,077,311)	(4,522,065)
Cash and cash equivalents at beginning of year	11,147,297	12,224,608	16,746,673
Cash and cash equivalents at end of year	$ 18,482,144	$ 11,147,297	$ 12,224,608