CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $)	9 Months Ended
	Sep. 27, 2014	Sep. 28, 2013
Operating Activities
Net income	$ 5,628,205	$ 4,978,325
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,506,785	2,916,310
Loss on sale of equipment and other assets	105,511	28,065
Provision for doubtful accounts	71,229	76,201
Deferred income taxes	0	(1,959)
Issuance of Common Stock for directors' fees	22,491	16,872
Changes in operating assets and liabilities:
Accounts receivable	(2,448,174)	(499,335)
Inventories	(207,873)	(1,092,971)
Prepaid expenses and other	56,064	201,459
Prepaid pension cost	865,344	1,842,832
Recoverable taxes receivable	0	1,158,632
Other assets	(141,478)	(59,685)
Accounts payable	1,357,742	655,352
Accrued compensation	(672,074)	(960,059)
Other accrued expenses	(130,173)	(1,366,903)
Net cash provided by operating activities	7,013,599	7,893,136
Investing Activities
Purchases of property, plant and equipment	(2,292,872)	(4,160,251)
Proceeds from sale of equipment and other assets	19,000	0
Net cash used in investing activities	(2,273,872)	(4,160,251)
Financing Activities
Principal payments on long-term debt	(1,071,428)	(1,071,429)
Proceeds from sales of Common Stock	0	13,580
Dividends paid	(2,302,391)	(1,928,439)
Net cash used in financing activities	(3,373,819)	(2,986,288)
Effect of exchange rate changes on cash	(155,480)	(147,996)
Net change in cash and cash equivalents	1,210,428	598,601
Cash and cash equivalents at beginning of period	19,988,361	18,482,144
Cash and cash equivalents at end of period	$ 21,198,789	$ 19,080,745