Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Current assets
Cash and cash equivalents	$ 29,879	$ 6,448
Accounts receivable, trade, net	4,351	5,345
Inventories	10,890	10,972
Prepaid expenses and other current assets	1,134	1,348
Total current assets	46,254	24,113
Assets held for rent, net	4,958	3,922
Property and equipment, net	5,347	5,572
Operating lease right-of-use assets, net	740	1,040
Long-term deposits and other assets	36	50
Investments	2,500	2,500
Accrued interest receivable	41
Intangible assets, net	20,588	21,982
Goodwill	33,506	33,637
Total assets	113,970	92,816
Current liabilities
Accounts payable	3,077	3,119
Accrued expenses and other current liabilities	2,606	3,369
Lease liabilities, operating, current portion	844	804
Contingent consideration, current portion		377
Warrant liability, current portion	963
Total current liabilities	7,490	7,669
Warrant liability, long-term		39,602
Contingent consideration, long-term	388	1,537
Lease liabilities, operating, long-term	116	550
Other long-term liabilities	133	4
Total liabilities	8,127	49,362
Commitments and Contingencies (Note 11)
Shareholders’ equity
Preferred stock, $0.001 par value; 1,000,000 shares authorized, Series A, 4,250 shares designated, and 0 shares issued and outstanding at June 30, 2020 and December 31, 2019, respectively		0
Common stock, $0.001 par value; 150,000,000 shares authorized, 25,982,367 and 20,825,452 shares issued and outstanding at June 30, 2020 and December 31, 2019, respectively	26	21
Additional paid-in capital	199,941	143,485
Accumulated deficit	(94,124)	(100,052)
Total shareholders’ equity	105,843	43,454
Total liabilities and shareholders’ equity	$ 113,970	$ 92,816