Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Jan. 02, 2016
Operating Activities
Net income	$ 5,045,255	$ 7,785,323	$ 5,727,043
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	4,719,185	3,814,393	3,921,438
Unrecognized pension & other postretirement benefits	326,706	931,554	1,384,605
Loss on sale of equipment and other assets	(369,128)	73,309	49,796
Provision for doubtful accounts	55,284	120,252	9,459
Deferred taxes	1,198,020	(403,002)	(240,071)
Issuance of stock compensation	354,501	149,572	64,992
Changes in operating assets and liabilities:
Accounts receivable	(2,574,823)	(1,062,654)	(852,168)
Inventories	152,130	2,514,371	(3,095,801)
Prepaid expenses	(1,709,241)	217,389	483,178
Recoverable tax receivables	0	0	380,000
Other assets	709,757	(84,626)	(106,081)
Accounts payable	892,439	(1,755,159)	1,182,124
Accrued compensation	911,572	261,231	28,426
Other accrued expenses	1,468,525	(146,713)	196,489
Net cash provided by operating activities	11,180,182	12,415,240	9,133,429
Investing Activities
Purchases of property, plant and equipment	(2,762,949)	(2,863,470)	(2,538,236)
Proceeds from sale of equipment and other assets	44,100	8,350	25,000
Business acquisitions	(40,078,000)	0	0
Net cash used in investing activities	(42,796,849)	(2,855,120)	(2,513,236)
Financing Activities
Principal payments on long-term debt	(2,560,714)	(1,428,571)	(1,071,428)
Proceeds from issuance of long-term debt and note	31,000,000	0	0
Proceeds from short-term borrowing (Revolver)	6,614,611	0	0
Payments on revolving credit note	(1,614,611)	0	0
Dividends paid	(2,754,568)	(2,751,148)	(2,810,669)
Net cash used in financing activities	30,684,718	(4,179,719)	(3,882,097)
Effect of exchange rate changes on cash	482,049	(470,011)	(757,554)
Net change in cash and cash equivalents	(449,899)	4,910,390	1,980,542
Cash and cash equivalents at beginning of year	22,725,376	17,814,986	15,834,444
Cash and cash equivalents at end of year	$ 22,275,477	$ 22,725,376	$ 17,814,986