Note 3 - Revenue From Contracts With Customers (Tables)

6 Months Ended

Jun. 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 June 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	$	23,127		$	21,795		$	1,332
Cost of revenues		15,492			14,704			788
Gross profit		7,635			7,091			544
Loss from operations		(4,169	)		(4,713	)		544
Loss before taxes		(4,601	)		(5,145	)		544
Income tax benefit		164			80			84
Net loss	$	(4,765	)	$	(5,225	)	$	460
Basic and diluted loss per common share	$	(0.17	)	$	(0.18	)	$	0.01

	For the six months ended June 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	$	45,093		$	43,499		$	1,594
Cost of revenues		30,881			30,450			431
Gross profit		14,212			13,049			1,163
Loss from operations		(7,948	)		(9,111	)		1,163
Loss before taxes		(8,164	)		(9,327	)		1,163
Income tax benefit		(137	)		(311	)		174
Net loss	$	(8,027	)	$	(9,016	)	$	989
Basic and diluted loss per common share	$	(0.28	)	$	(0.32	)	$	0.04

	As of June 30, 2018
	As Reported			Balances Without Adoption of ASC 606			Effect of Change Higher / (Lower)
(in thousands)
Assets
Inventories	$	14,684		$	16,222		$	(1,538	)
Contract assets		1,058			1,856			(798	)
Prepaid expenses and other		1,113			1,113			—
Total current assets		36,976			39,312			(2,336	)
Total assets	$	81,517		$	83,853		$	(2,336	)
Liabilities
Contract liabilities	$	4,690		$	11,253		$	(6,563	)
Refund liabilities		2,137			791			1,346
Total current liabilities		19,405			24,622			(5,217	)
Total liabilities		30,268			35,485			(5,217	)
Stockholders' Equity
Accumulated deficit		(114,695	)		(117,575	)		2,880
Accumulated other comprehensive loss		(3,892	)		(3,893	)		1
Total stockholders' equity		51,249			48,368			2,881
Total liabilities and stockholders' equity	$	81,517		$	83,853		$	(2,336	)

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		2,511
Revenue recognized		(2,391	)
Translation		(89	)
Total contract liabilities - June 30, 2018	$	4,776
Current contract liabilities - June 30, 2018	$	4,690
Long-term contract liabilities - June 30, 2018 (1)		86
Total contract liabilities - June 30, 2018	$	4,776

Disaggregation of Revenue [Table Text Block]

(in thousands)	Power and Electromechanical		Energy		Total
Distributor sales	$	12,161	$	—	$	12,161
Direct Sales		8,159		2,807		10,966
Total revenues	$	20,320	$	2,807	$	23,127

(in thousands)	Power and Electromechanical		Energy		Total
Distributor sales	$	21,778	$	—	$	21,778
Direct Sales		15,562		7,753		23,315
Total revenues	$	37,340	$	7,753	$	45,093

(in thousands)	Power and Electromechanical		Energy		Total
Revenues recognized at point in time	$	20,320	$	886	$	21,206
Revenues recognized over time		—		1,921		1,921
Total revenues	$	20,320	$	2,807	$	23,127

(in thousands)	Power and Electromechanical		Energy		Total
Revenues recognized at point in time	$	37,340	$	1,933	$	39,273
Revenues recognized over time		—		5,820		5,820
Total revenues	$	37,340	$	7,753	$	45,093

(in thousands)	Power and Electromechanical		Energy		Total
North America	$	15,057	$	728	$	15,785
Europe		1,098		2,058		3,156
Asia		4,130		5		4,135
Other		35		16		51
Total revenues	$	20,320	$	2,807	$	23,127

(in thousands)	Power and Electromechanical		Energy		Total
North America	$	28,089	$	2,093	$	30,182
Europe		2,192		5,582		7,774
Asia		6,949		35		6,984
Other		110		43		153
Total revenues	$	37,340	$	7,753	$	45,093