Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 2,352	$ 11,211
Marketable securities	3,092	951
Receivables, net of allowance for doubtful accounts of $671 and $631, respectively	6,491	6,782
Inventories, net	12,258	13,228
Prepaid expenses and other assets	1,202	2,193
Total current assets	25,395	34,365
Long-term marketable securities	6,854	3,764
Long-term inventories, net	7,715	8,953
Property and equipment, net	1,196	1,388
Operating lease - right of use assets, net	2,684
Intangibles, net	11,871	10,249
Other assets	192	196
Total assets	55,907	58,915
Current liabilities:
Accounts payable	1,979	3,729
Accrued liabilities	2,813	1,996
Deferred product revenue	239	283
Total current liabilities	5,031	6,008
Deferred rent		135
Operating lease liability	2,269
Other long-term liabilities	571	571
Total liabilities	7,871	6,714
Shareholders' equity:
Common stock, par value $0.001, 50,000,000 shares authorized, 16,646,323 and 16,630,597 shares issued and outstanding	17	17
Additional paid-in capital	57,985	57,840
Accumulated other comprehensive loss	(44)	(181)
Accumulated deficit	(9,922)	(5,475)
Total shareholders' equity	48,036	52,201
Total liabilities and shareholders' equity	$ 55,907	$ 58,915