Note 2 - Revenue Recognition (Tables)

6 Months Ended

Jun. 30, 2018

Notes Tables

Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]

	As Reported						As Adjusted
	December 31, 2017			Cumulative Adjustments			January 1, 2018
Assets:
Property, plant and equipment	$	106,716		$	1,027		$	107,743
Accumulated depreciation and amortization		(53,064	)		(548	)		(53,612	)
Net property, plant and equipment		53,652			479			54,131
Liabilities:
Deferred revenue		297			574			871
Deferred income taxes		2,440			(25	)		2,415
Stockholders' equity:
Retained earnings		97,562			(70	)		97,492

	June 30, 2018
	As Reported			Balances without adoption of ASC 606			Difference
Assets:
Property, plant and equipment	$	111,289		$	110,150		$	1,139
Accumulated depreciation and amortization		(52,600	)		(51,808	)		(792	)
Net property, plant and equipment		58,689			58,342			347
Liabilities:
Deferred revenue		3,331			2,909			422
Deferred income taxes		2,937			2,962			(25	)
Stockholders' equity:
Retained earnings		103,259			103,309			(50	)

	For the Six Months Ended June 30, 2018
	As Reported		Balances without adoption of ASC 606		Difference
Net sales	$	91,949	$	91,797	$	152
Cost of sales		68,779		68,647		132
Gross profit		23,170		23,150		20

Disaggregation of Revenue [Table Text Block]

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2018		2017		2018		2017
Net sales of:
Products	$	47,102	$	37,321	$	89,246	$	73,895
Tooling and Machinery		1,107		477		1,598		873
Engineering services		810		88		1,105		171
Total net sales	$	49,019	$	37,886	$	91,949	$	74,939

Contract with Customer, Asset and Liability [Table Text Block]

	Contract Liabilities
Deferred revenue - January 1, 2018	$	871
Acquired in Dielectrics business combination		2,175
Increases due to consideration received from customers		1,855
Revenue recognized		(1,570	)
Deferred revenue - June 30, 2018	$	3,331