Condensed Consolidated Statements Of Cash Flows (USD $)	6 Months Ended
	Jun. 30, 2011		Jun. 30, 2010
CASH FLOWS FROM OPERATING ACTIVITIES
Net earnings	$ 1,531,321		$ 1,491,387
Adjustments to reconcile net earnings to net cash (used in) provided from operating activities:
Depreciation and amortization	1,532,531		1,317,664
Provision for bad debts	55,941		111,900
Share-based compensation expense	823,846		408,834
Deferred income tax benefit	(496,000)		(360,500)
Gain on sales of property, plant and equipment	(13,000)		(45,437)
Changes in assets and liabilities:
Accounts receivable and other current assets	(3,561,923)		(200,877)
Inventories	(3,168,985)		187,297
Other assets	38,144		(7,473)
Accounts payable	677,837		202,941
Other current liabilities	(514,976)		53,929
Pension liability	404,140		56,094
Other long-term liabilities	58,000		55,000
Net cash (used in) provided from operating activities	(2,633,124)		3,270,759
CASH FLOWS FROM INVESTING ACTIVITIES
Additions to property, plant and equipment	(733,052)		(791,705)
Disposals of property, plant and equipment	19,199		51,657
Proceeds from notes receivable collections	0		15,250
Acquisition of intangible assets	(2,061,432)
Net cash used in investing activities	(2,775,285)		(724,798)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from long-term debt	3,320,000		3,035,000
Repayment of long-term debt	(3,320,000)		(3,035,000)
Payment of cash dividends	(1,616,429)		(1,595,055)
Proceeds received on exercise of stock options	503,692		109,717
Common stock reacquired and retired	(280,591)		(269,096)
Net cash used in financing activities	(1,393,328)		(1,754,434)
Net (decrease) increase in cash and cash equivalents	(6,801,737)		791,527
Cash and cash equivalents balance, beginning of year	9,107,461	[1]	6,365,557
Cash and cash equivalents balance, end of period	$ 2,305,724		$ 7,157,084

[1] The balance sheet as of December 31, 2010 has been derived from the audited balance sheet as of that date and has been condensed.