Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 8,191	$ 17,861
Trade accounts receivable, net of allowance for doubtful accounts of $233 and $233, respectively	10,161	10,563
Inventories	7,146	6,520
Prepaid expenses and other current assets	763	677
Total current assets	26,261	35,621
Property and equipment:
Machinery and equipment	5,230	5,166
Leasehold improvements	2,340	2,341
Gross property and equipment	7,570	7,507
Less: accumulated depreciation	(4,950)	(4,790)
Net property and equipment	2,620	2,717
Right-of-use assets, net	4,023
Goodwill	13,738	13,738
Intangible assets, net	14,594	14,911
Restricted certificates of deposit	175	175
Other assets	31	25
Total assets	61,442	67,187
Current liabilities:
Accounts payable	2,508	1,787
Accrued wages and benefits	1,728	2,921
Accrued professional fees	956	774
Customer deposits and deferred revenue	815	1,258
Current portion of operating lease liabilities	1,390
Domestic and foreign income taxes payable	954	700
Earnout payable	2,119	12,167
Other current liabilities	1,076	1,811
Total current liabilities	11,546	21,418
Operating lease liabilities, net of current portion	2,978
Contingent liability for repayment of state and local grant funds received	200	200
Deferred tax liabilities	2,600	2,689
Total liabilities	17,324	24,307
Commitments and Contingencies
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; 10,603,335 and 10,523,035 shares issued, respectively	106	105
Additional paid-in capital	26,695	26,513
Retained earnings	16,821	15,683
Accumulated other comprehensive earnings	700	783
Treasury stock, at cost; 33,077 shares	(204)	(204)
Total stockholders' equity	44,118	42,880
Total liabilities and stockholders' equity	$ 61,442	$ 67,187