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Note 7 - Line of Credit	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Debt Disclosure [Text Block]	7 . LINE OF CREDIT : The Company’s Loan and Security Agreement (the “Agreement”) with Bank of America, N.A, as amended, expires on October   25, 2018 and provides for revolving loans and letters of credit in the aggregate amount of up to $60  million, subject to a borrowing base. The borrowing base is calculated by applying various advance rates to eligible accounts receivable, costs and expected earnings in excess of billings, inventories and fixed assets, subject to various exclusions, adjustments and sublimits. Borrowings under the Agreement bear interest at rates related to London Interbank Offered Rate plus 1.75% to 2.25%, or at Bank of America’s prime rate plus 0.75% to 1.25%. Borrowings under the Agreement are secured by substantially all of the Company’s assets. As of December   31, 2016 and 2015, there were no outstanding borrowings. As of December   31, 2016, the Company’s borrowing capacity under the Agreement was $13.0  million, net of outstanding letters of credit. The Agreement also contains customary representations, warranties and events of default, which include the occurrence of events or circumstances which have a Material Adverse Effect, as defined in the Agreement. Payment of outstanding advances may be accelerated, at the option of Bank of America, should the Company default in its obligations under the Agreement. In conjunction with entering into the Agreement in October 2015, the Company terminated the Second Amended and Restated Credit Agreement dated as of October   24, 2012. The Company incurred incremental interest expense of approximately $0.4  million during the fourth quarter of 2015 related to the write-off of unamortized financing costs associated with the terminated agreement. Interest expense for continuing operations from line of credit borrowings, term notes and capital leases was $0.5  million in 2016, $1.4  million, net of amounts capitalized of $0.1  million in 2015 and $2.3  million, net of amounts capitalized of $0.2  million in 2014. No interest was capitalized in 2016. Term notes were paid off in 2014.

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- Definition

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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19,20,22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- References

No definition available.

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