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Line Of Credit	12 Months Ended
Line Of Credit	Dec. 31, 2011
Line Of Credit [Abstract]
Line Of Credit	7. LINE OF CREDIT The Company has a $3,000,000 line of credit with a commercial bank. The line of credit is collateralized by substantially all of the assets of the Company and expires September 5, 2013. Under the terms of the line of credit, the Company is required to maintain certain financial covenants. Interest is charged at the bank's prime rate and is payable monthly. There was no balance outstanding at December 31, 2011 and 2010. The Company frequently bids on and enters into international contracts that require bid and performance bonds. At December 31, 2011 and 2010, the commercial bank had issued standby letters of credit on behalf of the Company in the amount of $898,013 and $1,583,000, respectively that served as either bid or performance bonds. The amount available under the line of credit was reduced by this amount.

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

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