CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)	12 Months Ended
	Jan. 01, 2022	Jan. 02, 2021
Operating Activities
Net income	$ 9,349,171	$ 5,405,522
Less: Loss from discontinued operations	(6,833,172)	(5,629,397)
Income from continuing operations	16,182,343	11,034,919
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	7,241,073	6,815,783
Loss on disposition of subsidiaries	0	192,466
Unrecognized pension and postretirement benefits	(4,032,917)	(1,010,684)
Goodwill impairment	0	4,975,372
Gain on sale of equipment and other assets	2,470,339	333,590
Provision for doubtful accounts	73,097	156,286
Stock compensation expense	1,118,967	849,226
Deferred taxes	(3,010,111)	(2,118,551)
Changes in operating assets and liabilities:
Accounts receivable	(11,282,090)	311,887
Inventories	(19,608,565)	(836,465)
Prepaid expenses and other	(3,527,171)	(473,615)
Other assets	(519,478)	(4,581,818)
Accounts payable	8,834,545	(295,834)
Accrued compensation	947,171	(81,413)
Other accrued expenses	2,296,052	342,794
Net cash (used in) provided by operating activities	(7,757,423)	14,561,831
Investing Activities
Marketable securities	28,951	5,354
Business acquisition, net of cash acquired	0	(7,172,868)
Business disposition	2,325	2,785,657
Issuance of notes receivable	(2,500,000)	(2,172,068)
Payments received from notes receivable	821,868	96,377
Proceeds from sale of businesses	17,030,726	0
Proceeds from sale of building and equipment	1,980,729	445,212
Purchases of property, plant and equipment	(3,719,815)	(2,335,308)
Net cash provided by (used in) investing activities	13,644,784	(8,347,644)
Financing Activities
Principal payments on long-term debt	(17,274,410)	(10,049,577)
Financing leases, net	126,797	(10,500)
Purchase common stock for treasury	(369,651)	(368,864)
Dividends paid	(2,755,686)	(2,754,650)
Net cash used in financing activities	(20,272,950)	(13,183,591)
Discontinued Operations
Cash provided by operating activities	5,733,884	6,126,931
Cash used in investing activities	(1,022,256)	(1,407,932)
Cash provided by discontinued operations	4,711,628	4,718,999
Effect of exchange rate changes on cash	174,756	355,535
Net change in cash and cash equivalents	(9,499,205)	(1,894,870)
Cash and cash equivalents at beginning of period	16,101,635	17,996,505
Cash and cash equivalents at end of period	6,602,430	16,101,635
Supplemental disclosure of cash flow information:
Interest	2,271,818	2,754,980
Income taxes	2,318,018	3,755,475
Non-cash investing and financing activities
Right of use asset	(1,456,128)	425,552
Lease liability	$ 1,329,331	$ (464,454)