Short-Term and Long-Term Debt (Details) (USD $)	Sep. 30, 2012	Dec. 31, 2011
Components of Long-term debt
Less current portion	$ (39,000)	$ (37,000)
Long-term debt, noncurrent	223,000	253,000
Note payable to a bank [Member]
Components of Long-term debt
Long-term debt	$ 262,000	$ 290,000