Note 3 - Revenue From Contracts With Customers (Tables)

9 Months Ended

Sep. 30, 2018

Notes Tables

Cumulative Effect of Adjustments for New Accounting Pronouncements on Balance Sheet [Table Text Block]

	Balance at December 31, 2017			Adjustments Due to ASC 606			Balance at January 1, 2018
(in thousands)
Assets
Inventories	$	13,892		$	(1,064	)	$	12,828
Contract assets		2,299			(516	)		1,783
Total current assets		41,276			(1,580	)		39,696
Total assets	$	87,909		$	(1,580	)	$	86,329
Liabilities
Contract liabilities	$	8,829		$	(4,168	)	$	4,661
Refund liabilities		695			870			1,565
Total current liabilities		18,914			(3,298	)		15,616
Deferred tax liabilities		2,414			(173	)		2,241
Total liabilities		30,423			(3,471	)		26,952
Stockholders' Equity
Accumulated deficit		(108,559	)		1,891			(106,668	)
Total stockholders' equity		57,486			1,891			59,377
Total liabilities and stockholders' equity	$	87,909		$	(1,580	)	$	86,329

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

	For the Three Months Ended September 30, 2018
(in thousands except per share amounts)	As Reported			Balances Without Adoption of ASC 606			Effect of Change Higher / (Lower)
Statement of Operations
Total revenues	$	24,744		$	23,581		$	1,163
Cost of revenues		16,482			15,799			683
Gross profit		8,262			7,782			480
Loss from operations		(1,484	)		(1,964	)		480
Loss before taxes		(1,677	)		(2,157	)		480
Net loss	$	(1,534	)	$	(2,014	)	$	480
Basic and diluted loss per common share	$	(0.05	)	$	(0.07	)	$	0.02

	For the Nine Months Ended September 30, 2018
(in thousands except per share amounts)	As Reported			Balances Without Adoption of ASC 606			Effect of Change Higher / (Lower)
Statement of Operations
Total revenues	$	69,837		$	67,080		$	2,757
Cost of revenues		47,363			46,248			1,115
Gross profit		22,474			20,832			1,642
Loss from operations		(9,432	)		(11,074	)		1,642
Loss before taxes		(9,841	)		(11,483	)		1,642
Income tax (benefit) expense		(280	)		(453	)		173
Net loss	$	(9,561	)	$	(11,030	)	$	1,469
Basic and diluted loss per common share	$	(0.34	)	$	(0.39	)	$	0.05

	As of September 30, 2018
	As Reported			Balances Without Adoption of ASC 606			Effect of Change Higher / (Lower)
(in thousands)
Assets
Inventories	$	16,052		$	18,212		$	(2,160	)
Contract assets		1,575			2,534			(959	)
Total current assets		34,597			37,716			(3,119	)
Total assets	$	78,957		$	82,076		$	(3,119	)
Liabilities
Accrued expenses	$	4,528		$	4,441		$	87
Contract liabilities		3,657			11,772			(8,115	)
Refund liabilities		2,518			976			1,542
Total current liabilities		18,447			24,933			(6,486	)
Total liabilities		29,242			35,728			(6,486	)
Stockholders' Equity
Accumulated deficit		(116,229	)		(119,589	)		3,360
Accumulated other comprehensive loss		(3,940	)		(3,947	)		7
Total stockholders' equity		49,715			46,348			3,367
Total liabilities and stockholders' equity	$	78,957		$	82,076		$	(3,119	)

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

(in thousands)
Current contract liabilities - January 1, 2018	$	4,661
Long-term contract liabilities - January 1, 2018 (1)		84
Total Contract liabilities - January 1, 2018	$	4,745
Total Contract liabilities - January 1, 2018	$	4,745
Contract Additions, net		2,610
Revenue recognized		(3,451	)
Translation		(145	)
Total contract liabilities - September 30, 2018	$	3,759
Current contract liabilities - September 30, 2018	$	3,657
Long-term contract liabilities - September 30, 2018 (1)		102
Total Contract liabilities - September 30, 2018	$	3,759

Disaggregation of Revenue [Table Text Block]

(in thousands)	Power and Electromechanical		Energy		Total
Distributor sales	$	11,736	$	—	$	11,736
Direct Sales		7,853		5,155		13,008
Total revenues	$	19,589	$	5,155	$	24,744

(in thousands)	Power and Electromechanical		Energy		Total
Distributor sales	$	33,514	$	—	$	33,514
Direct Sales		23,415		12,908		36,323
Total revenues	$	56,929	$	12,908	$	69,837

(in thousands)	Power and Electromechanical		Energy		Total
Revenues recognized at point in time	$	19,589	$	1,437	$	21,026
Revenues recognized over time		—		3,718		3,718
Total revenues	$	19,589	$	5,155	$	24,744

(in thousands)	Power and Electromechanical		Energy		Total
Revenues recognized at point in time	$	56,929	$	3,370	$	60,299
Revenues recognized over time		—		9,538		9,538
Total revenues	$	56,929	$	12,908	$	69,837

(in thousands)	Power and Electromechanical		Energy		Total
North America	$	14,883	$	1,092	$	15,975
Europe		1,010		3,843		4,853
Asia		3,445		154		3,599
Other		251		66		317
Total revenues	$	19,589	$	5,155	$	24,744

(in thousands)	Power and Electromechanical		Energy		Total
North America	$	42,973	$	3,185	$	46,158
Europe		3,201		9,425		12,626
Asia		10,394		189		10,583
Other		361		109		470
Total revenues	$	56,929	$	12,908	$	69,837