(in thousands)

March 31,

2021

December 31,

2020

Current assets:

Cash

$

670

$

671

Accounts receivable, net

800

483

Inventory

1,888

3,118

Prepaid expenses and other current assets

80

21

Total current assets

3,438

4,293

Property, equipment and leasehold improvements, net

6,890

7,442

Other assets

371

395

TOTAL ASSETS

$

10,699

$

12,130

Liabilities:

Total current liabilities

$

505

$

396

Total long-term liabilities

278

307

TOTAL LIABILITIES

$

783

$

703