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CONSOLIDATED BALANCE SHEETS [PARENTHETICAL] (USD $)
Sep. 30, 2011
Dec. 31, 2010
Sep. 30, 2010
Allowances Receivable$ 0$ 1,052,862$ 0
Accumulated Depreciation$ 18,381,081$ 17,998,537$ 17,861,158
Common Stock, Par Value (in dollars per share)$ 0.30$ 0.30$ 0.30
Common Stock, Shares Authorized2,000,000,0002,000,0002,000,000
Common Stock, Shares Issued583,094583,094583,094
Common Stock, Shares Outstanding519,600519,600519,350
Treasury Stock63,49463,49463,744