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Note 2 - Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 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
Stockholders' equity:
Retained earnings			97,562				(95	)			97,467

		March 31, 2018
		As Reported				Balances without adoption of ASC 606				Difference
Assets:
Property, plant and equipment		$	113,935			$	112,831			$	1,104
Accumulated depreciation and amortization			(55,148	)			(54,474	)			(674	)
Net property, plant and equipment			58,787				58,357				430
Liabilities:
Deferred revenue			3,130				2,613				517
Stockholders' equity:
Retained earnings			99,244				99,331				(87	)

		For the three months ended March 31, 2018
		As Reported				Balances without adoption of ASC 606				Difference
Net sales		$	42,931			$	42,874			$	57
Cost of sales			32,746				32,697				49
Gross profit			10,185				10,177				8

Disaggregation of Revenue [Table Text Block]

		Three Months Ended March 31,
		2018				2017
		(in thousands)
Net sales of products		$	42,440			$	36,657
Net sales of tooling			491				396
Total net sales		$	42,931			$	37,053

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			685
Revenue recognized  - Q1 2018			(601	)
Deferred revenue - March 31, 2018		$	3,130

X

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Tabular disclosure of contract balances and changes in contract balances.

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