CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)	9 Months Ended
	Oct. 03, 2015	Sep. 27, 2014
Operating Activities
Net income	$ 3,986,267	$ 5,628,205
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,885,560	2,506,785
Unrecognized pension and postretirement benefits	1,356,233	982,195
Loss on sale of equipment and other assets	62,254	105,511
Provision for doubtful accounts	44,126	71,229
Issuance of Common Stock for directors' fees	42,487	22,491
Changes in operating assets and liabilities:
Accounts receivable	(2,991,497)	(2,448,174)
Inventories	(2,602,651)	(207,873)
Prepaid expenses and other	532,981	56,064
Recoverable income taxes receivable	380,000	0
Other assets	(4,616)	(141,478)
Accounts payable	269,696	1,357,742
Accrued compensation	(186,096)	(672,074)
Other accrued expenses	(125,439)	(247,024)
Net cash provided by operating activities	3,649,305	7,013,599
Investing Activities
Purchases of property, plant and equipment	(2,044,712)	(2,292,872)
Proceeds from sales of equipment and other assets	0	19,000
Net cash used in investing activities	(2,044,712)	(2,273,872)
Financing Activities
Principal payments on long-term debt	(1,071,428)	(1,071,428)
Dividends paid	(2,123,322)	(2,302,391)
Net cash used in financing activities	(3,194,750)	(3,373,819)
Effect of exchange rate changes on cash	(633,221)	(155,480)
Net change in cash and cash equivalents	(2,223,378)	1,210,428
Cash and cash equivalents at beginning of period	15,834,444	19,988,361
Cash and cash equivalents at end of period	$ 13,611,066	$ 21,198,789