Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 7,612	$ 17,861
Trade accounts receivable, net of allowance for doubtful accounts of $211 and $233, respectively	9,296	10,563
Inventories	7,182	6,520
Prepaid expenses and other current assets	805	677
Total current assets	24,895	35,621
Property and equipment:
Machinery and equipment	5,269	5,166
Leasehold improvements	2,424	2,341
Gross property and equipment	7,693	7,507
Less: accumulated depreciation	(5,273)	(4,790)
Net property and equipment	2,420	2,717
Right of use assets, net	4,842
Goodwill	13,738	13,738
Intangible assets, net	13,654	14,911
Restricted certificates of deposit	140	175
Other assets	26	25
Total assets	59,715	67,187
Current liabilities:
Accounts payable	1,984	1,787
Accrued wages and benefits	2,007	2,921
Accrued professional fees	805	774
Customer deposits and deferred revenue	456	1,258
Accrued sales commission	442	703
Current portion of operating lease liabilities	1,302
Domestic and foreign income taxes payable	868	700
Earnout payable		12,167
Other current liabilities	497	1,108
Total current liabilities	8,361	21,418
Operating lease liabilities, net of current portion	3,794
Contingent liability for repayment of state and local grant funds received	463	200
Deferred tax liabilities	2,263	2,689
Total liabilities	14,881	24,307
Commitments and Contingencies (Note 11)
Stockholders' equity:
Preferred stock, $0.01 par value; 5,000,000 shares authorized; no shares issued or outstanding
Common stock, $0.01 par value; 20,000,000 shares authorized; 10,413,982 and 10,523,035 shares issued, respectively	104	105
Additional paid-in capital	26,256	26,513
Retained earnings	18,005	15,683
Accumulated other comprehensive earnings	673	783
Treasury stock, at cost; 33,077 shares	(204)	(204)
Total stockholders' equity	44,834	42,880
Total liabilities and stockholders' equity	$ 59,715	$ 67,187