Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 17,861	$ 13,290
Trade accounts receivable, net of allowance for doubtful accounts of $233 and $213, respectively	10,563	12,166
Inventories	6,520	4,966
Prepaid expenses and other current assets	677	577
Total current assets	35,621	30,999
Property and equipment:
Machinery and equipment	5,166	5,033
Leasehold improvements	2,341	822
Gross property and equipment	7,507	5,855
Less: accumulated depreciation	(4,790)	(4,314)
Net property and equipment	2,717	1,541
Goodwill	13,738	13,738
Intangible assets, net	14,911	16,014
Restricted certificates of deposit	175	175
Other assets	25	26
Total assets	67,187	62,493
Current liabilities:
Accounts payable	1,787	2,032
Accrued wages and benefits	2,921	2,781
Customer deposits and deferred revenue	1,258	886
Domestic and foreign income taxes payable	700	1,199
Earnout payable	12,167	5,355
Other current liabilities	2,585	2,166
Total current liabilities	21,418	14,419
Contingent liability for repayment of state and local grant funds received	200
Federal transition tax payable, net of current portion		436
Deferred tax liabilities	2,689	2,606
Contingent consideration liability, net of current portion		5,744
Total liabilities	24,307	23,205
Commitments and Contingencies (Notes 11 and 13)
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; 10,523,035 and 10,427,435 shares issued, respectively	105	104
Additional paid-in capital	26,513	25,860
Retained earnings	15,683	12,646
Accumulated other comprehensive earnings	783	882
Treasury stock, at cost; 33,077 shares	(204)	(204)
Total stockholders' equity	42,880	39,288
Total liabilities and stockholders' equity	$ 67,187	$ 62,493