Note 3 - Acquisition (Tables)

6 Months Ended

Jun. 30, 2017

Notes Tables

Schedule of Business Acquisitions, by Acquisition [Table Text Block]

Cash paid to acquire the capital stock of Ambrell	$	22,742
Estimated fair value of contingent consideration		2,302
Estimated working capital adjustments		(710	)
Total preliminary purchase price	$	24,334

Goodwill	$	16,820
Identifiable intangible assets		9,500
Tangible assets acquired and liabilities assumed:
Cash		70
Trade accounts receivable		3,621
Inventories		1,917
Other current assets		200
Property and equipment		614
Accounts payable		(1,420	)
Accrued expenses		(1,280	)
Customer advances		(554	)
Deferred tax liability		(5,154	)
Total preliminary purchase price	$	24,334

Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]

	Fair Value		Weighted Average Estimated Useful Life
			(in years)
Customer relationships	$	6,500		6
Patented technology		1,500		10
Customer backlog		1,000		1
Ambrell trade name		500		4
Total intangible assets	$	9,500		6

Business Acquisition, Pro Forma Information [Table Text Block]

	Three Months Ended June 30,					Six Months Ended June 30,
	2017		2016			2017		2016
Net revenues	$	18,896	$	15,737		$	37,688	$	28,767
Net earnings (loss)	$	1,936	$	(3	)	$	3,841	$	(409	)
Diluted earnings (loss) per share	$	0.19	$	(0.00	)	$	0.37	$	(0.04	)