CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)	6 Months Ended
	Jun. 30, 2018	Jul. 01, 2017
Operating Activities
Net income	$ 6,358,672	$ 2,983,543
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,314,985	1,536,319
Unrecognized pension and postretirement benefits	116,578	231,005
Loss on sale of equipment and other assets	50,348	48,618
Provision for doubtful accounts	201,552	24,866
Issuance of Common Stock for directors' fees	214,821	81,970
Changes in operating assets and liabilities:
Accounts receivable	(3,717,778)	(4,519,266)
Inventories	(2,658,358)	3,249,443
Prepaid expenses and other	(339,385)	(1,636,168)
Other assets	(58,426)	970,284
Accounts payable	3,712,586	956,626
Accrued compensation	(1,527,545)	(822,861)
Other accrued expenses	946,368	3,204,161
Net cash provided by operating activities	5,614,417	6,308,540
Investing Activities
Marketable securities	0	(318,039)
Business Acquisition, net of cash acquired	(4,994,685)	(42,148,000)
Capitalized software	(1,444,459)	0
Purchases of property, plant and equipment	(1,236,375)	(708,499)
Net cash used in investing activities	(7,675,519)	(43,174,538)
Financing Activities
Proceeds from issuance of long-term debt	0	31,000,000
Proceeds from short term borrowings	7,000,000	6,614,611
Payments on revolving credit note	(6,000,000)	(1,614,611)
Principal payments on long-term debt	(775,000)	(1,785,714)
Dividends paid	(1,378,456)	(1,376,914)
Net cash used in financing activities	(1,153,456)	32,837,372
Effect of exchange rate changes on cash	(80,996)	382,052
Net change in cash and cash equivalents	(3,295,553)	(3,646,574)
Cash and cash equivalents at beginning of period	22,275,477	22,725,376
Cash and cash equivalents at end of period	$ 18,979,924	$ 19,078,802