Composition of Certain Financial Statement Items (Tables)

6 Months Ended

Jun. 30, 2018

Composition of Certain Financial Statement Items

Schedule of inventory

	June 30, 2018		December 31, 2017
Raw materials	$	1,118	$	1,323
Finished goods		2,430		2,347
Total inventories, net of reserves	$	3,548	$	3,670

Schedule of property and equipment

	June 30, 2018			December 31, 2017
Computer equipment and software	$	333		$	351
Furniture and office equipment		148			137
Manufacturing equipment		1,150			1,108
Research and development equipment		30			30
Leasehold improvements		185			178
Property and equipment, cost		1,846			1,804
Less: accumulated depreciation and amortization		(981	)		(810	)
Property and equipment, net	$	865		$	994

Schedule of accrued expenses

	June 30, 2018		December 31, 2017
Payroll and commissions payable	$	2,728	$	2,871
Vacation		915		723
Other accrued expenses		552		438
Total accrued expenses	$	4,195	$	4,032