Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2016	Jan. 02, 2016	Jan. 03, 2015
Operating Activities
Net income	$ 7,785,323	$ 5,727,043	$ 7,661,476
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	3,814,393	3,921,438	3,486,302
Unrecognized pension & other postretirement benefits	931,554	1,384,605	(175,687)
Loss on sale of equipment and other assets	73,309	49,796	69,258
Provision for doubtful accounts	120,252	9,459	37,601
Issuance of Common Stock for directors' fees	149,572	64,992	29,994
Changes in operating assets and liabilities:
Accounts receivable	(1,062,654)	(852,168)	(207,631)
Inventories	2,514,371	(3,095,801)	(2,825,155)
Prepaid expenses	217,389	483,178	593,075
Recoverable tax receivable	0	380,000	(380,000)
Other assets	(84,626)	(106,081)	(156,164)
Accounts payable	(1,755,159)	1,182,124	998,502
Accrued compensation	261,231	28,426	185,724
Other accrued expenses	(549,715)	(43,582)	29,889
Net cash provided by operating activities	12,415,240	9,133,429	9,347,184
Investing Activities
Purchases of property, plant and equipment	(2,863,470)	(2,538,236)	(3,633,165)
Proceeds from sale of equipment and other assets	8,350	25,000	22,500
Business acquisitions	0	0	(5,034,289)
Net cash used in investing activities	(2,855,120)	(2,513,236)	(8,644,954)
Financing Activities
Principal payments on long-term debt	(1,428,571)	(1,071,428)	(1,785,714)
Proceeds from sales of Common Stock	0	0	271,600
Tax benefit from disqualifying dispositions of incentive stock options	0	0	8,882
Dividends paid	(2,751,148)	(2,810,669)	(2,987,480)
Net cash used in financing activities	(4,179,719)	(3,882,097)	(4,492,712)
Effect of exchange rate changes on cash	(470,011)	(757,554)	(363,435)
Net change in cash and cash equivalents	4,910,390	1,980,542	(4,153,917)
Cash and cash equivalents at beginning of year	17,814,986	15,834,444	19,988,361
Cash and cash equivalents at end of year	$ 22,725,376	$ 17,814,986	$ 15,834,444