CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($)	9 Months Ended
	Sep. 29, 2018	Sep. 30, 2017
Operating Activities
Net income	$ 10,125,333	$ 5,214,024
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,483,035	3,230,174
Unrecognized pension and postretirement benefits	(2,197,580)	74,839
Loss on sale of equipment and other assets	55,823	18,585
Provision for doubtful accounts	211,292	52,663
Issuance of stock compensation	268,412	130,547
Changes in operating assets and liabilities:
Accounts receivable	(4,116,321)	(3,894,569)
Inventories	(4,730,310)	2,267,945
Prepaid expenses and other	(158,549)	(2,686,763)
Other assets	(6,864)	494,750
Accounts payable	2,614,554	1,466,401
Accrued compensation	(200,967)	(172,509)
Other accrued expenses	1,747,682	3,978,256
Net cash provided by operating activities	7,095,540	10,174,343
Investing Activities
Marketable securities	(174,145)	(366,554)
Business Acquisition, net of cash acquired	(4,994,685)	(42,148,000)
Capitalized software	(1,311,567)	0
Purchases of property, plant and equipment	(2,850,365)	(1,457,641)
Net cash used in investing activities	(9,330,762)	(43,972,195)
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	(12,000,000)	(1,614,611)
Principal payments on long-term debt	(1,162,500)	(2,173,214)
Purchase common stock for the Treasury	(315,061)	0
Dividends paid	(2,067,957)	(2,065,607)
Net cash used in financing activities	(8,545,518)	31,761,179
Effect of exchange rate changes on cash	(323,034)	505,388
Net change in cash and cash equivalents	(11,103,774)	(1,531,285)
Cash and cash equivalents at beginning of period	22,275,477	22,725,376
Cash and cash equivalents at end of period	$ 11,171,703	$ 21,194,091