SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)

9 Months Ended

Sep. 30, 2016

Summary of activity for the allowance for doubtful accounts

The following is a summary of activity for the allowance for doubtful accounts from continuing operations during the three and nine months ended September 30, 2016 and 2015:



	Dollars in Thousands
	Beginning Balance		Additions		Deductions			Ending Balance
Three Months Ended September 30, 2016	$	157	$	2	$	(19	)	$	140
Three Months Ended September 30, 2015	$	20	$	50	$	—		$	70
Nine Months Ended September 30, 2016	$	87	$	72	$	(19	)	$	140
Nine Months Ended September 30, 2015	$	20	$	50	$	—		$	70

Activity for the allowance for obsolete inventory

The following is a summary of activity for the allowance for obsolete inventory during the three and nine months ended September 30, 2016 and 2015:



	Dollars in Thousands
	Beginning Balance		Additions		Deductions		Ending Balance
Three Months Ended September 30, 2016	$	63	$	—	$	—	$	63
Three Months Ended September 30, 2015	$	—	$	—	$	—	$	—
Nine Months Ended September 30, 2016	$	63	$	—	$	—	$	63
Nine Months Ended September 30, 2015	$	—	$	—	$	—	$	—

Schedule of property and equipment, useful lives

Depreciation is computed using the straight-line method over the estimated useful lives of the related assets as follows:



Leasehold improvements	1 to 10 years
Furniture and fixtures	3 to 7 years
Production equipment	3 to 7 years
Computer equipment	3 to 7 years
Research and development equipment	2 to 7 years