Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 7,594	$ 17,861
Trade accounts receivable, net of allowance for doubtful accounts of $233	9,172	10,563
Inventories	7,183	6,520
Prepaid expenses and other current assets	544	677
Total current assets	24,493	35,621
Property and equipment:
Machinery and equipment	5,351	5,166
Leasehold improvements	2,341	2,341
Gross property and equipment	7,692	7,507
Less: accumulated depreciation	(5,120)	(4,790)
Net property and equipment	2,572	2,717
Right-of-use assets, net	5,548
Goodwill	13,738	13,738
Intangible assets, net	14,279	14,911
Restricted certificates of deposit	140	175
Other assets	26	25
Total assets	60,796	67,187
Current liabilities:
Accounts payable	2,412	1,787
Accrued wages and benefits	1,979	2,921
Accrued professional fees	877	774
Customer deposits and deferred revenue	712	1,258
Accrued sales commission	514	703
Current portion of operating lease liabilities	1,348
Domestic and foreign income taxes payable	703	700
Earnout payable		12,167
Other current liabilities	571	1,108
Total current liabilities	9,116	21,418
Operating lease liabilities, net of current portion	4,514
Contingent liability for repayment of state and local grant funds received	463	200
Deferred tax liabilities	2,500	2,689
Total liabilities	16,593	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; 10,626,390 and 10,523,035 shares issued, respectively	106	105
Additional paid-in capital	26,908	26,513
Retained earnings	16,634	15,683
Accumulated other comprehensive earnings	759	783
Treasury stock, at cost; 33,077 shares	(204)	(204)
Total stockholders' equity	44,203	42,880
Total liabilities and stockholders' equity	$ 60,796	$ 67,187