Unaudited Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents, including restricted cash of $152 for both periods presented	$ 27,885	$ 27,325
Trade receivables, net of allowances of $85 and $68, respectively; Including receivables from Related Party of $3.5 million and $2.8 million, respectively	7,818	5,234
Inventories	11,511	14,525
Prepaid expenses and other assets	2,088	2,450
Total current assets	49,302	49,534
Leasehold improvements and equipment, net	1,841	2,137
Intangible assets, net	435	510
Right-of-use assets, net	2,063	2,400
Other long-term assets	394	383
Total assets	54,035	54,964
Current liabilities
Accounts payable	8,105	10,232
Accrued expenses	8,621	9,493
Current maturities of operating lease obligations	973	691
Current maturities of finance lease obligations	12	11
Customer deposits	156	195
Total current liabilities	17,867	20,622
Deferred revenue	3,311	3,311
Operating lease obligations, less current maturities	2,133	2,563
Finance lease obligations, less current maturities	6	12
Total liabilities	23,317	26,508
Commitments and Contingencies (Note 10)
Stockholders' Equity
Common stock, $0.001 par value; authorized 150,000 shares; 75,473 shares and 74,981 shares issued and outstanding at June 30, 2024 and December 31, 2023, respectively	75	75
Additional paid-in capital	221,612	218,845
Accumulated deficit	(190,967)	(190,460)
Cumulative translation adjustments	(2)	(4)
Total stockholders' equity	30,718	28,456
Total liabilities and stockholders' equity	$ 54,035	$ 54,964