General Credit Agreement	12 Months Ended
General Credit Agreement	Dec. 31, 2013
General Credit Agreement [Abstract]
General Credit Agreement	7.GENERAL CREDIT AGREEMENT The Company has a general credit and security agreement with Bremer Bank, which provides a revolving credit line of up to $3,000,000. On May 6, 2013, the Company signed an amendment with Bremer Bank extending the expiration date from May 5, 2013 to May 5, 2014, while keeping previous provisions intact. The Company had no borrowings under the credit line during the years ended December 31, 2013 or 2012. The credit agreement contains certain covenants requiring the Company to maintain certain financial ratios. The Company was in compliance with these requirements as of December 31, 2013.

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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