Consolidated Balance Sheets (USD $)	Jun. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 589,325	$ 649,952
Accounts receivable, less allowance for doubtful accounts of approximately $155,000 in 2011 and $134,000 in 2010	1,690,126	2,370,642
Inventories, net	2,788,409	2,545,200
Prepaid expenses	267,440	227,570
Deferred income taxes	397,871	358,481
Total current assets	5,733,171	6,151,845
Property, plant and equipment:
Land	500	500
Buildings and leasehold improvements	983,800	397,136
Machinery and equipment	10,383,604	10,050,517
Total property, plant and equipment	11,367,904	10,448,153
Less allowance for depreciation and amortization	(7,794,878)	(7,442,888)
Net property, plant and equipment	3,573,026	3,005,265
Other noncurrent assets	47,255	41,545
Deferred income taxes	411,827	510,635
Total assets	9,765,279	9,709,290
Current liabilities:
Accounts payable	2,025,070	1,992,819
Commissions, salaries, wages, and taxes thereon	125,032	193,006
Income taxes payable	69,278	65,203
Revolving line of credit	500,000	0
Current portion of long-term debt	200,000	200,000
Deferred revenue	10,000	341,000
Other accrued expenses	393,815	348,524
Total current liabilities	3,323,195	3,140,552
Long-term liabilities:
Long-term debt, net of current portion	700,000	800,000
Pension and other benefits	1,470,484	1,466,179
Total long-term liabilities	2,170,484	2,266,179
Total liabilities	5,493,679	5,406,731
Commitments and contingencies (Note 12)
Stockholders' equity:
Common stock, $1.00 par value: Authorized shares - 4,000,000; Issued shares - 1,852,440 in 2011 and 1,834,106 in 2010; Outstanding shares - 1,660,440 in 2011 and 1,642,106 in 2010	1,852,440	1,834,106
Other capital	277,037	265,271
Retained earnings	4,894,146	4,964,006
Treasury stock at cost, 192,000 shares	(2,112,000)	(2,112,000)
Accumulated other comprehensive loss	(640,023)	(648,824)
Total stockholders' equity	4,271,600	4,302,559
Total liabilities and stockholders' equity	$ 9,765,279	$ 9,709,290