Condensed Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 93,493	$ 112,801
Accounts receivable, net of allowances of $2,713 and $1,116 at March 31, 2016 and December 31, 2015, respectively	2,713	4,249
Inventories, net	20,160	20,602
Prepaid expenses and other current assets	1,780	1,473
Total current assets	118,146	139,125
Property and equipment, net	1,796	1,404
Goodwill	3,273
Other intangible assets, net	4,008	53
Other assets	221	223
Total assets	127,444	140,805
Current liabilities:
Accounts payable	3,424	4,069
Accrued and other current liabilities	5,748	6,959
Customer deposits	8,171	9,488
Total current liabilities	17,343	20,516
Warranty reserve and other long-term liabilities	1,974	1,418
Total liabilities	$ 19,317	$ 21,934
Commitments and contingencies (Note 10)
Stockholders' equity:
Common stock, $0.01 par value — Authorized 200,000,000 shares; issued 18,141,473 and 18,066,143 and outstanding 18,068,746 and 17,993,416 shares at March 31, 2016 and December 31, 2015 respectively	$ 181	$ 180
Additional paid-in capital	295,419	294,227
Treasury stock, at cost (72,727 shares at March 31, 2016 and December 31, 2015)	(260)	(260)
Accumulated deficit	(187,213)	(175,276)
Total stockholders' equity	108,127	118,871
Total liabilities and stockholders' equity	$ 127,444	$ 140,805