Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current assets
Cash and cash equivalents	$ 19,617	$ 30,657
Accounts receivable, trade, net of allowance for doubtful accounts of $26 and $0 at June 30, 2019 and December 31, 2018, respectively	3,832	3,045
Inventories	5,306	3,509
Prepaid expenses and other current assets	384	353
Total current assets	29,139	37,564
Property and equipment
Leasehold improvements	1,284	1,284
Furniture and computer equipment	577	706
Manufacturing and other equipment	1,733	1,657
Subtotal	3,594	3,647
Less: Accumulated depreciation	(2,276)	(2,328)
Net property and equipment	1,318	1,319
Operating lease right-of-use assets	1,079
Investment in SAVSU	6,100	6,548
Intangible assets, net	4,446
Goodwill	9,524
Long-term deposits	136	36
Total assets	51,742	45,467
Current liabilities
Accounts payable	876	720
Accrued expenses and other current liabilities	204	91
Accrued compensation	963	998
Lease liability - operating, current portion	665
Lease liability – financing, current portion	14
Deferred rent, current portion		130
Contingent consideration - current	371
Total current liabilities	3,093	1,939
Deferred rent, long-term		349
Long-term lease liability - operating	806
Long-term lease liability - financing	10
Other long-term liabilities	7	31
Contingent consideration – long-term	1,560
Total liabilities	5,476	2,319
Commitments and Contingencies (Note 10)
Shareholders’ equity
Common stock, $0.001 par value; 150,000,000 shares authorized, 18,898,609 and 18,547,406 shares issued and outstanding at June 30, 2019 and December 31, 2018, respectively	19	19
Additional paid-in capital	116,013	114,160
Accumulated deficit	(69,766)	(71,031)
Total shareholders’ equity	46,266	43,148
Total liabilities and shareholders’ equity	$ 51,742	$ 45,467