Consolidated Balance Sheets (USD $)	Dec. 31, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 525,632	$ 649,952
Accounts receivable, less allowance for doubtful accounts of $149,000 in 2011 and $134,000 in 2010	1,754,959	2,370,642
Inventories, net	2,845,563	2,545,200
Prepaid expenses	330,403	227,570
Deferred income taxes	278,437	358,481
Total current assets	5,734,994	6,151,845
Property, plant and equipment:
Land	500	500
Buildings and leasehold improvements	754,922	397,136
Machinery and equipment	10,891,820	10,050,517
Total property, plant and equipment	11,647,242	10,448,153
Less allowance for depreciation and amortization	(8,087,988)	(7,442,888)
Net property, plant and equipment	3,559,254	3,005,265
Other noncurrent assets	47,259	41,545
Deferred income taxes	727,118	510,635
Total assets	10,068,625	9,709,290
Current liabilities:
Accounts payable	2,025,656	1,992,819
Commissions, salaries, wages and taxes thereon	162,507	193,006
Income taxes payable	69,718	65,203
Revolving line of credit	700,000	0
Current portion of long-term debt	200,000	200,000
Deferred revenue	0	341,000
Other accrued expenses	491,188	348,524
Total current liabilities	3,649,069	3,140,552
Long-term liabilities:
Long-term debt, net of current portion	600,000	800,000
Pension and other benefits	2,051,054	1,466,179
Total long-term liabilities	2,651,054	2,266,179
Total liabilities	6,300,123	5,406,731
Commitments and contingencies (Note 16)
Stockholders' equity:
Common stock, $1 par value: Authorized shares - 4,000,000 Issued shares - 1,871,999 and 1,834,106 in 2011 and 2010, respectively Outstanding shares - 1,679,999 and 1,642,108 in 2011 and 2010, respectively	1,871,999	1,834,106
Other capital	284,478	265,271
Retained earnings	5,001,097	4,964,006
Treasury stock at cost (192,000 shares)	(2,112,000)	(2,112,000)
Accumulated other comprehensive loss	(1,277,072)	(648,824)
Total stockholders' equity	3,768,502	4,302,559
Total liabilities and stockholders' equity	$ 10,068,625	$ 9,709,290