Note 3 - Line of Credit	6 Months Ended
Note 3 - Line of Credit	Jun. 30, 2014
Debt Disclosure [Abstract]
Debt Disclosure [Text Block]	Note 3. Line of Credit On October 24, 2012, the Company executed and closed the second amendment (the “Second Credit Agreement Amendment”) to its revolving 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. Under the terms of the Second Credit Agreement Amendment, (1) total availability under the revolving credit facility is $5,000, (2) the borrowing base is derived from 75% of eligible accounts receivable (as defined) and (3) the Company’s minimum net worth covenant is $22,000. In addition, the maturity date of the facility is October 15, 2015. 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 is prime rate plus 1%. On July 31, 2014, the Company executed and closed the third amendment (the “Third Credit Agreement Amendment”) to its revolving facility with Amegy. The terms of the Third Credit Agreement Amendment are essentially the same as in the Second Credit Agreement Amendment with the exception of the ability to issue up to $300 of standby letters of credit. Outstanding letters of credit will reduce the Company’s availability under the facility. As of August 11, 2014, the Company had no outstanding borrowings or letters of credit under the revolving credit facility.

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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