Consolidated Balance Sheets (USD $)	Dec. 28, 2013	Dec. 29, 2012
Current Assets
Cash and cash equivalents	$ 19,988,361	$ 18,482,144
Accounts receivable, less allowances of $410,000 in 2013 and $487,000 in 2012	16,284,603	18,368,774
Inventories:
Raw materials and component parts	8,256,977	8,473,007
Work in process	4,925,001	6,160,578
Finished goods	17,475,634	14,751,195
Inventories	30,657,612	29,384,780
Prepaid expenses and other assets	3,244,686	3,365,904
Recoverable income taxes receivable	0	1,158,632
Deferred income taxes	818,662	1,064,202
Total Current Assets	70,993,924	71,824,436
Property, Plant and Equipment
Land	1,161,343	1,152,970
Buildings	15,736,794	14,490,407
Machinery and equipment	44,951,717	42,486,647
Accumulated depreciation	(34,458,096)	(32,469,281)
Net Property, Plant and Equipment	27,391,758	25,660,743
Other Assets
Goodwill	13,842,047	13,933,599
Trademarks	173,177	170,512
Patents, technology and other intangibles net of accumulated amortization	1,457,503	1,653,957
Deferred income taxes	0	2,610,903
Total Other Assets	15,472,727	18,368,971
TOTAL ASSETS	113,858,409	115,854,150
Current Liabilities
Accounts payable	7,302,368	7,607,658
Accrued compensation	3,007,169	3,453,709
Other accrued expenses	1,519,338	2,414,135
Current portion of long-term debt	1,785,714	1,428,571
Total Current Liabilities	13,614,589	14,904,073
Deferred income taxes	1,111,755	0
Other long-term liabilities	248,417	607,463
Long-term debt, less current portion	4,285,714	6,071,428
Accrued postretirement benefits	2,232,872	2,507,726
Accrued pension cost	10,860,211	20,181,361
Commitments and contingencies (See Note 3)
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: 8,916,897 shares in 2013 and 8,914,478 shares in 2012	28,621,582	28,585,498
Treasury Stock: 2,694,729 shares in 2013 and 2012	(19,105,723)	(19,105,723)
Retained earnings	83,006,671	78,717,589
Accumulated other comprehensive income (loss):
Foreign currency translation	1,983,506	2,640,478
Unrecognized net pension and postretirement benefit costs, net of taxes	(13,001,185)	(19,255,743)
Accumulated other comprehensive loss	(11,017,679)	(16,615,265)
Total Shareholders' Equity	81,504,851	71,582,099
TOTAL LIABILITIES AND SHAREHOLDERS' EQUITY	$ 113,858,409	$ 115,854,150