CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
ASSETS
Cash and cash equivalents	$ 10,082	$ 4,274
Marketable securities	5,190	5,249
Accounts receivable, less allowance for doubtful accounts of $561 at June 30, 2016 and $521 at December 31, 2015	11,509	8,150
Inventories	12,503	13,265
Other current assets	1,809	1,190
Total current assets	41,093	32,128
Marketable securities, long-term	7,227	8,084
Equipment and leasehold improvements, net	2,418	2,368
Intangible assets, net	507	549
Goodwill	1,366	1,366
Other assets	193	186
Deferred tax assets	46	58
Total assets	52,850	44,739
LIABILITIES AND STOCKHOLDERS’ EQUITY
Accounts payable	6,368	5,778
Advance customer payments	1,187	481
Accrued expenses	3,296	1,959
Total current liabilities	10,851	8,218
Other liabilities	282	268
Deferred tax liability	68	69
Reserve for income taxes	126	126
Total liabilities	11,327	8,681
Commitments and contingencies
Stockholders’ equity:
Preferred stock, no par value, 5,000,000 shares authorized, none outstanding	0	0
Common stock, no par value, 25,000,000 shares authorized, 6,824,368 shares issued and outstanding at June 30, 2016 and 6,771,668 shares issued and outstanding at December 31, 2015	32,102	31,292
Accumulated other comprehensive loss	(1,358)	(1,709)
Retained earnings	10,779	6,475
Total stockholders’ equity	41,523	36,058
Total liabilities and stockholders’ equity	$ 52,850	$ 44,739