Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 10,195	$ 10,277
Trade accounts receivable, net of allowance for doubtful accounts of $212	13,487	8,435
Inventories	8,212	7,476
Prepaid expenses and other current assets	562	776
Total current assets	32,456	26,964
Property and equipment:
Machinery and equipment	5,401	5,356
Leasehold improvements	2,901	2,636
Gross property and equipment	8,302	7,992
Less: accumulated depreciation	(5,764)	(5,642)
Net property and equipment	2,538	2,350
Right-of-use assets, net	6,099	6,387
Goodwill	13,738	13,738
Intangible assets, net	12,117	12,421
Restricted certificates of deposit	140	140
Other assets	38	30
Total assets	67,126	62,030
Current liabilities:
Accounts payable	3,655	2,424
Accrued wages and benefits	2,044	1,944
Accrued professional fees	515	776
Customer deposits and deferred revenue	1,191	396
Accrued sales commissions	703	472
Current portion of operating lease liabilities	1,160	1,215
Domestic and foreign income taxes payable	1,157	825
Other current liabilities	746	804
Total current liabilities	11,171	8,856
Operating lease liabilities, net of current portion	5,753	6,050
Deferred tax liabilities	1,913	1,922
Other liabilities	440	450
Total liabilities	19,277	17,278
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; 10,743,408 and 10,562,200 shares issued, respectively	108	106
Additional paid-in capital	27,835	26,851
Retained earnings	19,322	17,110
Accumulated other comprehensive earnings	788	889
Treasury stock, at cost; 33,077 shares	(204)	(204)
Total stockholders' equity	47,849	44,752
Total liabilities and stockholders' equity	$ 67,126	$ 62,030