Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Sep. 30, 2019	Dec. 31, 2018
Assets
Cash and cash equivalents	$ 11,719	$ 26,318
Short-term marketable securities	33,177	21,668
Accounts receivable, net of allowances of $482 at September 30, 2019 and $399 at December 31, 2018	14,878	15,721
Inventory and other deferred costs	36,695	27,388
Prepaid expenses and other current assets	3,226	2,922
Total current assets	99,695	94,017
Property and equipment, net	14,070	14,102
Right-of-use leased assets	6,008
Goodwill	32,102	29,868
Other intangibles, net	16,765	13,692
Deferred tax assets	1,164	1,215
Other assets	210	194
Total assets	170,014	153,088
Liabilities and stockholders’ equity
Accounts payable	1,670	1,732
Accrued expenses	13,390	15,847
Acquisition-related obligations	2,597	2,179
Lease liabilities - short-term	1,666
Total current liabilities	19,323	19,758
Lease liabilities - long-term	4,755
Deferred tax liabilities	823	484
Other long-term liabilities	2,797	2,611
Total liabilities	27,698	22,853
Stockholders’ equity:
Preferred stock, $0.01 par value; authorized 3,000,000 shares; none outstanding
Common stock, $0.01 par value; authorized 37,000,000 shares; issued 21,495,306 shares at September 30, 2019, and 21,110,224 shares at December 31, 2018	215	211
Additional paid-in capital	103,673	98,442
Retained earnings	54,117	45,831
Accumulated other comprehensive loss	(4,894)	(3,900)
Treasury stock, at cost; 1, 515,378 shares at September 30, 2019 and 1,501,511 shares at December 31, 2018	(10,795)	(10,349)
Total stockholders’ equity	142,316	130,235
Total liabilities and stockholders’ equity	$ 170,014	$ 153,088