Revenue Recognition (Tables)

3 Months Ended

Mar. 31, 2018

Revenue from Contract with Customer [Abstract]

Schedule of New Accounting Pronouncements and Changes in Accounting Principles

The cumulative effect to the Company’s consolidated January 1, 2018 balance sheet from the adoption of the new revenue standard was as follows (in thousands):

Balance Sheet	Balance at December 31, 2017			Adjustments Due to ASC 606			Balance at January 1, 2018
Assets:
Trade and other accounts receivable, net of allowance	$	31,643		$	227		$	31,870
Inventories	32,228			(430		)	31,798
Liabilities and Stockholders’ Equity:
Accounts payable and accrued liabilities	32,758			37			32,795
Deferred revenue and customer deposits	6,669			(518		)	6,151
Accumulated deficit	(247,233		)	278			(246,955		)

Disaggregation of Revenue

The following tables disaggregate the Company’s revenue by product line and by shipment destination:

	Three Months Ended March 31,
Product Line:	2018
Energy Storage (formerly Ultracapacitors)	$	23,002
High-Voltage Capacitors	5,414
Total	$	28,416

	Three Months Ended March 31,
Region:	2018
Americas	$	5,818
Asia Pacific	9,827
Europe	12,771
Total	$	28,416

Contract with Customer, Asset and Liability

Changes in the Company’s contract liabilities, which are included in “deferred revenue and customer deposits” in the Company’s condensed consolidated balance sheets, are as follows:

	Three Months Ended March 31,
	2018
Beginning balance as of December 31, 2017	$	5,331
Impact of adoption of ASC 606	(518		)
Increases due to cash received from customers	1,600
Decreases due to recognition of revenue	(1,624		)
Other changes	(99		)
Contract liabilities as of March 31, 2018	$	4,690