Other Financial Statement Data (Tables)

12 Months Ended

Dec. 31, 2017

OTHER FINANCIAL STATEMENT DATA [Abstract]

Schedule Of Inventory Components

Inventories consist of the following:

	December 31,
(In thousands)	2017		2016
Raw materials and purchased parts	$	7,383	$	6,475
Work in process	1,666		826
Finished goods	5,344		4,230
Total inventories	$	14,393	$	11,531

Schedule Of Equipment And Leasehold Improvements

Equipment and leasehold improvements consist of the following:

	December 31,
(In thousands)	2017			2016
Equipment	$	14,088		$	13,624
Leasehold improvements	1,688			1,628
	15,776			15,252
Accumulated depreciation and amortization	(13,469		)	(12,814		)
	$	2,307		$	2,438

Schedule Of Intangible Assets

Intangible assets consist of the following:

	December 31, 2017							December 31, 2016
(In thousands)	Gross Carrying Amount		Accumulated Amortization			Net		Gross Carrying Amount		Accumulated Amortization			Net
Patents	$	2,687	$	(2,463	)	$	224	$	2,567	$	(2,351	)	$	216
Software		206	(111		)	95		206		(82		)	124
Marketing assets and customer relationships		101	(45		)	56		101		(33		)	68
Non-compete agreements		101	(96		)	5		101		(71		)	30
	$	3,095	$	(2,715	)	$	380	$	2,975	$	(2,537	)	$	438

Schedule Of Amortization Expense For Intangible Assets

Amortization expense in 2017, 2016 and 2015 was as follows:

	Year Ended December 31,						Weighted Avg. Remaining Life-Years at December 31, 2017
(In thousands)	2017		2016		2015
Patents	$	112	$	98	$	110	2.0
Software	29		29		29		3.2
Marketing assets and customer relationships	12		12		12		4.8
Non-compete agreements	25		26		25		0.2
	$	178	$	165	$	176

Schedule of Accrued Expenses

Accrued expenses consist of the following:

	December 31,
(In thousands)	2017		2016
Wages and benefits	$	1,328	$	2,673
Warranty liability	713		717
Other	244		366
	$	2,285	$	3,756

Other Noncurrent Liabilities

Other liabilities consist of the following:

	December 31,
(In thousands)	2017		2016
Deferred rent	$	—	$	111
Warranty liability	54		73
Deferred warranty revenue	34		66
	$	88	$	250

Schedule Of Changes In Estimated Warranty Liability

A reconciliation of the changes in our estimated warranty liability is as follows:

	Year Ended December 31,
(In thousands)	2017			2016			2015
Balance at beginning of period	$	790		$	645		$	839
Accrual for warranties	582			688				441
Warranty revision	7			(53		)		(19	)
Settlements made during the period	(612		)	(490		)		(616	)
Balance at end of period	767			790				645
Current portion of estimated warranty liability	(713		)	(717		)		(584	)
Long-term estimated warranty liability	$	54		$	73		$	61

Schedule Of Changes In Deferred Warranty Revenue

A reconciliation of the changes in our deferred warranty revenue is as follows:

	Year Ended December 31,
(In thousands)	2017			2016			2015
Balance at beginning of period	$	346		$	199		$	475
Revenue deferrals	357			581				353
Amortization of deferred revenue	(444		)	(434		)		(629	)
Total deferred warranty revenue	259			346				199
Current portion of deferred warranty revenue	(225		)	(280		)		(196	)
Long-term deferred warranty revenue	$	34		$	66		$	3