Condensed Consolidated Balance Sheets (Unaudited) (USD $)	Jun. 30, 2012		Dec. 31, 2011
Current Assets:
Cash and cash equivalents	$ 602,336		$ 704,345
Certificates of deposit	6,187,000		5,880,000
Accounts receivable, net	5,420,892	[1]	4,398,426	[1]
Inventories, net	5,227,478		5,212,040
Deferred tax assets	419,191		420,191
Other current assets	245,378		347,737
Total current assets	18,102,275		16,962,739
Property, Plant and Equipment:
Land	923,587		923,587
Land improvements	314,563		314,563
Buildings and improvements	6,188,535		6,169,545
Production equipment and other	29,200,274		28,785,896
Property, Plant and Equipment Gross	36,626,959		36,193,591
Less accumulated depreciation	28,710,314		28,298,066
Net property, plant and equipment	7,916,645		7,895,525
Total assets	26,018,920		24,858,264
Current Liabilities:
Accounts payable	1,349,036		968,266
Accrued wages and salaries	694,337		374,964
Other accrued expenses	399,270		453,594
Unearned revenue and customer deposits	49,162		151,652
Total current liabilities	2,491,805		1,948,476
Deferred income taxes	758,275		785,275
Total liabilities	3,250,080		2,733,751
Shareholders' Equity:
Preferred stock		[2]		[2]
Common stock	1,138,096	[3]	1,138,096	[3]
Additional paid-in capital	447,134		447,134
Retained earnings	25,105,708		24,461,381
Treasury stock	(3,922,098)	[4]	(3,922,098)	[4]
Total shareholders' equity	22,768,840		22,124,513
Total liabilities and shareholders' equity	$ 26,018,920		$ 24,858,264

[1] Net of allowance of $140,000.

[2] No par value, 500,000 shares authorized, none outstanding.

[3] $1.00 par value, 4,000,000 shares authorized, 1,138,096 shares issued, 966,132 shares outstanding.

[4] At cost, 171,964 shares.