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Note 18 - Restructuring	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Restructuring and Related Activities Disclosure [Text Block]	18 . RESTRUCTURING : In October 2016, the Company sold the Denver, Colorado facility and leased the property back from the buyer through March  1, 2017 in order to conclude production at the facility, complete final shipments and transfer certain equipment assets to other Company facilities. The Company incurred restructuring expenses of $0.9  million and $1.0  million during the years ended December  31, 2017 and 2016, respectively, which includes employee severance and termination related restructuring expenses of $0 and $0.5  million, respectively and expense related to demobilization activities of $0.9  million and $0.5  million, respectively. The Company completed the demobilization project and vacated the facility in the first quarter of 2017.

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The entire disclosure for restructuring and related activities. Description of restructuring activities such as exit and disposal activities, include facts and circumstances leading to the plan, the expected plan completion date, the major types of costs associated with the plan activities, total expected costs, the accrual balance at the end of the period, and the periods over which the remaining accrual will be settled.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 420
-URI http://asc.fasb.org/topic&trid=2175745

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