CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 62,272	$ 16,466
Short term investments	0	61,678
Trade accounts receivable, net of allowance of $354 and $428	7,662	5,015
Inventories, net of provision for obsolescence of $439 and $439	7,237	5,212
Prepaid expenses and other current assets	1,734	1,146
Total current assets	78,905	89,517
Property and equipment, net	6,645	5,788
Operating lease right-of-use assets	368
Finance lease right-of-use assets	638
Other assets	387	305
Total assets	86,943	95,610
Current liabilities:
Accounts payable	1,457	1,423
Accrued expenses and other liabilities	7,285	6,162
Current portion of operating lease liabilities	101
Current portion of finance lease liabilities	196
Total current liabilities	9,039	7,585
Note payable	140	140
Long-term operating lease liabilities	248
Long-term finance lease liabilities	444
Contract liabilities	339	0
Total liabilities	10,210	7,725
STOCKHOLDERS’ EQUITY
Common stock, $0.001 par value; 75,000,000 shares authorized; 34,120,065 issued and 33,977,490 outstanding as of September 30, 2019, and 33,847,100 issued and 33,704,525 outstanding as of December 31, 2018	34	34
Additional paid-in capital	55,668	52,920
Retained earnings	21,031	34,931
Accumulated other comprehensive income, net of tax:	76,733	87,885
Foreign currency translation adjustment	$ 86,943	$ 95,610