Note 11 - Income Taxes (Tables)

12 Months Ended

Dec. 31, 2017

Notes Tables

Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]

	Years Ended December 31,
	2017		2016
Domestic	$	2,580	$	3,345
Foreign		1,258		862
Total	$	3,838	$	4,207

Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]

	Years Ended December 31,
	2017			2016
Current
Domestic -- Federal	$	4,106		$	1,295
Domestic -- state		175			74
Foreign		212			45
Total	$	4,493		$	1,414
Deferred
Domestic -- Federal	$	(1,886	)	$	(39	)
Domestic -- state		244			10
Foreign		12			164
Total		(1,630	)		135
Income tax expense	$	2,863		$	1,549

Schedule of Deferred Tax Assets and Liabilities [Table Text Block]

	December 31,
	2017			2016
Deferred tax assets:
Net operating loss (state and foreign)	$	444		$	71
Tax credit carryforwards		206			-
Inventories		185			182
Accrued vacation pay and stock-based compensation		156			161
Depreciation of property and equipment		97			580
Allowance for doubtful accounts		47			55
Accrued warranty		20			9
Acquisition costs		15			28
Intangibles		-			311
Other		15			7
Total		1,185			1,404
Valuation allowance		(370	)		-
Deferred tax assets		815			1,404
Deferred tax liabilities:
Net intangible assets		(3,421	)		(212	)
Unremitted earnings of foreign subsidiaries		-			(82	)
Deferred tax liabilities		(3,421	)		(294	)
Net deferred tax assets (l iabilities)	$	(2,606	)	$	1,110

Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]

	Years Ended December 31,
	2017			201 6
Expected income tax provision at U.S. statutory rate	$	1,343		$	1,430
Increase (decrease) in tax from:
Federal tax rate changes		(1,843	)		-
Current year tax credits (foreign and research)		(379	)		(140	)
Domestic production activities deduction		(290	)		(112	)
Foreign income tax rate differences		(229	)		(258	)
Restricted stock		(59	)		-
Nondeductible expenses		2,463			14
Domestic tax expense, net of Federal benefit		791			55
Federal transition tax payable		476			-
Deemed dividend from foreign subsidiaries		423			396
Acquisition costs		142			-
NOL carryforwards utilized		36			180
Changes in valuation allowance		17			(15	)
Other		(28	)		(1	)
Income tax expense	$	2,863		$	1,549