Note 3 - Line of Credit	9 Months Ended
Note 3 - Line of Credit	Sep. 30, 2013
Debt Disclosure [Abstract]
Debt Disclosure [Text Block]	Note 3. Line of Credit On April 29, 2011, the Company closed a credit agreement (the “Credit Agreement”) for a new $500,000 revolving credit facility with Amegy Bank National Association (“Amegy”). Borrowings under the facility are to be used for working capital and other general business purposes of the Company. On January 12, 2012, the Company executed and closed an amendment (the “Credit Agreement Amendment”) to its revolving Credit Agreement with Amegy. Under the terms of the Credit Agreement Amendment, which was effective as of January 1, 2012, (1) total availability under the revolving credit facility was increased to $1,500,000 (from $500,000), (2) the borrowing base was modified to 65% (from 80%) of eligible accounts receivable (as defined in the Credit Agreement) and (3) the Company's minimum net worth covenant was increased to $21,250,000 (from $20,000,000). In addition, the maturity date of the facility was extended to December 31, 2012. The parties also executed an amendment to their pledge and security agreement ("Security Agreement Amendment") to reflect the execution of the Credit Agreement Amendment. The Company's obligation to repay advances under the amended facility is evidenced by an amended and restated promissory note. On October 24, 2012, the Company executed and closed the second amendment (the “Second Credit Agreement Amendment”) to its revolving Credit Agreement with Amegy, which amended and replaced the terms amended by the Credit Agreement Amendment. Under the terms of the Second Credit Agreement Amendment, (1) total availability under the revolving credit facility was increased to $5,000,000 (from $1,500,000), (2) the borrowing base was modified to 75% (from 65%) of eligible accounts receivable (as defined in the Credit Agreement) and (3) the Company’s minimum net worth covenant was increased to $22,000,000 (from $21,250,000). In addition, the maturity date of the facility was extended to October 15, 2015 (from December 31, 2012). The Company’s obligation to repay advances under the amended facility is evidenced by a second amended and restated promissory note (the “Second Amended and Restated Promissory Note”). Under the terms of the Second Amended and Restated Promissory Note, the interest rate on borrowings was reduced to the prime rate plus 1% (from prime plus 2%) and a minimum interest rate (formerly 5%) was eliminated. As of November 12, 2013, the Company had outstanding borrowings of $1,100,000 under the Credit Agreement.

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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