CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - USD ($)	Apr. 01, 2017	Dec. 31, 2016
Current Assets
Cash and cash equivalents	$ 23,581,301	$ 22,725,376
Marketable securities	215,923	0
Accounts receivable, less allowances: $389,000 - 2017; $430,000 - 2016	19,961,027	18,135,792
Inventories	32,505,203	34,030,286
Prepaid expenses and other assets	1,979,789	1,858,471
Total Current Assets	78,243,243	76,749,925
Property, Plant and Equipment	65,444,168	64,911,071
Accumulated depreciation	(39,643,872)	(38,745,557)
Property, Plant and Equipment, Net	25,800,296	26,165,514
Goodwill	14,827,388	14,819,835
Trademarks	170,037	166,312
Patents, technology, and other intangibles net of accumulated amortization	1,686,815	1,764,449
Deferred income taxes	4,420,289	4,532,361
Total Other Assets	21,104,529	21,282,957
TOTAL ASSETS	125,148,068	124,198,396
Current Liabilities
Accounts payable	7,964,163	7,048,174
Accrued compensation	1,820,392	3,112,404
Other accrued expenses	2,139,592	1,812,647
Current portion of long-term debt	714,285	892,857
Total Current Liabilities	12,638,432	12,866,082
Other long-term liabilities	288,805	288,805
Long-term debt, less current portion	714,286	892,857
Accrued other postretirement benefits	1,046,269	1,051,700
Accrued pension cost	26,445,249	26,631,438
Shareholders' Equity
Voting Preferred Stock, no par value: Authorized and unissued: 1,000,000 shares
Nonvoting Preferred Stock, no par value: Authorized and unissued: 1,000,000 shares
Common Stock, no par value: Authorized: 50,000,000 shares Issued: 8,952,961 shares in 2017 and 8,950,827 shares in 2016 Outstanding: 6,258,233 shares in 2017 and 6,256,098 shares in 2016	29,188,131	29,146,622
Treasury Stock: 2,694,729 shares in 2017 and 2016	(19,105,723)	(19,105,723)
Retained earnings	96,460,017	95,631,216
Accumulated other comprehensive income (loss):
Foreign currency translation	(1,693,110)	(2,165,081)
Marketable securities, net of tax	(1,451)	0
Unrecognized net pension and other postretirement benefit costs, net of taxes	(20,832,837)	(21,039,520)
Accumulated other comprehensive loss	(22,527,398)	(23,204,601)
Total Shareholders' Equity	84,015,027	82,467,514
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 125,148,068	$ 124,198,396