Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 9,080	$ 4,669
Trade accounts receivable, net	5,916	4,122
Inventories, net	15,898	16,282
Prepaid expenses and other current assets	1,906	3,081
Total current assets	32,800	28,154
Property, plant and equipment, net	2,452	1,840
Available-for-sale securities	5,086	3,402
Deferred tax assets, net	4,421	5,461
Capitalized software, net	264	370
Other assets	205	222
Total assets	45,228	39,449
Current liabilities:
Accounts payable	4,560	2,285
Accrued compensation and related taxes	1,812	1,136
Accrued warranty expense	518	538
Customer deposits	989	0
Accrued other expenses and other current liabilities	234	168
Deferred revenue	142	136
Total current liabilities	8,255	4,263
Deferred revenue	344	366
Total liabilities	8,599	4,629
Commitments and contingencies
Stockholders' equity:
Preferred stock; $1.00 par value; 1,000,000 authorized shares; none issued or outstanding	0	0
Common stock; $.60 par value; 20,000,000 authorized shares; 13,741,749 and 13,730,562 issued and outstanding shares at June 30, 2016 and December 31, 2015, respectively	8,245	8,238
Additional paid-in capital	25,335	24,926
Retained earnings	1,901	1,259
Accumulated other comprehensive income	1,170	397
Treasury stock, at cost	(22)	0
Total stockholders' equity	36,629	34,820
Total liabilities and stockholders' equity	$ 45,228	$ 39,449