CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 58,812	$ 16,596
Short term investments	0	61,678
Trade accounts receivable, net of allowance of $273 and $428	7,987	3,721
Other receivables	1,233	1,359
Inventories, net of provision for obsolescence of $392 and $439	5,068	3,146
Prepaid expenses and other current assets	3,633	3,335
Total current assets	76,733	89,835
Property and equipment, net	6,618	5,788
Operating lease right-of-use assets	350
Finance lease right-of-use assets	653
Other assets	391	305
Total assets	84,745	95,928
Current liabilities:
Accounts payable	2,438	1,423
Accrued taxes and other liabilities	9,396	7,188
Current portion of operating lease liabilities	108
Current portion of finance lease liabilities	229
Related party note payable	140	0
Total current liabilities	12,311	8,611
Related party note payable	0	140
Long-term operating lease liabilities	235
Long-term finance lease liabilities	421
Other liabilities	519	0
Liabilities	13,486	8,751
COMMITMENTS AND CONTINGENCIES (NOTE 18)
STOCKHOLDERS' EQUITY
Common stock, $0.001 par value; 75,000,000 shares authorized; 34,312,527 issued and 34,169,952 outstanding as of December 31, 2019, and 33,847,100 issued and 33,704,525 outstanding as of December 31, 2018	34	34
Additional paid-in capital	56,708	52,920
Retained earnings	14,517	34,223
Total stockholders’ equity	71,259	87,177
Total liabilities and stockholders’ equity	$ 84,745	$ 95,928