CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) (USD $)	3 Months Ended
	Apr. 04, 2015	Mar. 29, 2014
Operating Activities
Net income	$ 873,951	$ 1,502,885
Adjustments to reconcile net income to net cash provided (used) by operating activities:
Depreciation and amortization	959,857	823,320
Loss on sale of equipment and other assets	0	85,623
Provision for doubtful accounts	0	27,374
Issuance of Common Stock for directors' fees	7,498	7,490
Changes in operating assets and liabilities:
Accounts receivable	(2,317,994)	(1,993,182)
Inventories	33,403	299,770
Prepaid expenses and other	(140,975)	(176,412)
Prepaid pension cost	807,838	539,852
Recoverable taxes receivable	380,000	0
Other assets	57,208	(48,591)
Accounts payable	(14,302)	1,048,202
Accrued compensation	(1,349,334)	(1,640,177)
Other accrued expenses	1,029,720	(62,850)
Net cash provided by operating activities	326,870	413,304
Investing Activities
Purchases of property, plant and equipment	(820,161)	(690,041)
Net cash used in investing activities	(820,161)	(690,041)
Financing Activities
Principal payments on long-term debt	(357,142)	(357,142)
Dividends paid	(686,841)	(684,438)
Net cash used in financing activities	(1,043,983)	(1,041,580)
Effect of exchange rate changes on cash	(161,879)	(151,708)
Net change in cash and cash equivalents	(1,699,153)	(1,470,025)
Cash and cash equivalents at beginning of period	15,834,444	19,988,361
Cash and cash equivalents at end of period	$ 14,135,291	$ 18,518,336