CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current Assets
Cash and cash equivalents	$ 96,311	$ 81,364
Accounts receivable-net of doubtful accounts of $931 and $394 at June 30, 2019 and December 31, 2018, respectively	978	1,011
Inventory	48,473	38,888
Investment securities	17,211	19,670
Income taxes, prepaid	1,365
Prepaid expenses and other current assets	7,638	4,586
Total current assets	171,976	145,519
Property, plant and equipment - net	24,984	19,747
Right-of-use asset	12,296
Other assets	710	1,183
Deferred tax assets	2,605	2,980
TOTAL ASSETS	212,571	169,429
Current liabilities
Accounts payable and accrued expenses	73,570	60,323
Current lease obligation	2,474
Total current liabilities	76,044	60,323
Other liabilities:
Lease obligation, less current lease obligation	10,504
Total liabilities	86,548	60,323
Stockholders' Equity:
Common stock, par value $.001 per share: 20,000 shares authorized; 12,126 and 12,117 issued and 11,827 and 11,868 outstanding at June 30, 2019 and December 31, 2018, respectively	12	12
Additional paid-in capital	11,070	8,802
Accumulated other comprehensive income (loss)	56	(173)
Retained earnings	155,762	131,344
Less: Treasury stock at cost, 264 and 193 shares at June 30, 2019 and December 31, 2018, respectively	(40,877)	(30,879)
Total stockholders' equity	126,023	109,106
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 212,571	$ 169,429