CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $)	6 Months Ended
	Jun. 30, 2012	Jul. 02, 2011
Operating Activities
Net income	$ 4,677,954	$ 2,580,973
Adjustments to reconcile net income to net cash provided (used) by operating activities:
Depreciation and amortization	1,710,686	1,815,098
Loss on sale of equipment and other assets	17,756	0
Provision for doubtful accounts	65,159	33,403
Issuance of Common Stock for directors' fees	12,298	12,301
Changes in operating assets and liabilities:
Accounts receivable	(1,811,994)	(3,169,134)
Inventories	268,835	(311,550)
Prepaid expenses and other	411,292	(509,981)
Prepaid pension cost	(517,902)	249,140
Recoverable taxes receivable	647,949	0
Other assets	(34,196)	(29,950)
Accounts payable	(228,004)	120,723
Accrued compensation	(395,312)	(1,331,130)
Other accrued expenses	570,077	129,293
Net cash provided (used) by operating activities	5,394,598	(410,814)
Investing Activities
Purchases of property, plant and equipment	(2,371,770)	(1,843,634)
Proceeds from sales of equipment and other assets	19,000	0
Net cash used in investing activities	(2,352,770)	(1,843,634)
Financing Activities
Principal payments on long-term debt	(535,714)	(535,714)
Principal payments on revolving credit loan	(3,000,000)	0
Proceeds from issuance of long-term debt	5,000,000	0
Proceeds from sales of Common Stock	61,110	90,990
Tax Benefit from disqualifying disposition of incentive stock options	0	16,453
Dividends paid	(1,242,807)	(1,109,824)
Net cash provided by/(used in) financing activities	282,589	(1,538,095)
Effect of exchange rate changes on cash	12,785	17,158
Net change in cash and cash equivalents	3,337,202	(3,775,385)
Cash and cash equivalents at beginning of period	11,147,297	12,224,608
Cash and cash equivalents at end of period	$ 14,484,499	$ 8,449,223