CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
CURRENT ASSETS:
Cash and cash equivalents	$ 17,261	$ 516
Short-term investments	606
Restricted cash	331	330
Accounts receivable, net of allowance for doubtful accounts of $279 and $453 as of June 30, 2013 and December 31, 2012, respectively	22,877	20,039
Inventories, net	36,810	21,988
Prepaid expenses and other current assets	3,202	3,836
Assets held for sale	2,190	8,042
Total current assets	83,277	54,751
Property and equipment, net	72,972	79,889
Intangible assets, net	6,125	7,454
Other assets	686	816
TOTAL ASSETS	163,060	142,910
CURRENT LIABILITIES:
Lines of credit and notes payable		955
Current maturities of long-term debt	356	352
Current portions of capital lease obligations	1,274	2,217
Accounts payable	28,644	16,377
Accrued liabilities	6,293	6,012
Customer deposits	21,586	4,063
Liabilities held for sale		3,860
Total current liabilities	58,153	33,836
LONG-TERM LIABILITIES:
Long-term debt, net of current maturities	2,767	2,956
Long-term capital lease obligations, net of current portions	436	641
Other	2,299	2,169
Total long-term liabilities	5,502	5,766
COMMITMENTS AND CONTINGENCIES
STOCKHOLDERS' EQUITY:
Preferred stock, $0.001 par value; 10,000,000 shares authorized; no shares issued or outstanding
Common stock, $0.001 par value; 30,000,000 shares authorized; 14,476,727 and 14,197,792 shares issued and outstanding as of June 30, 2013 and December 31, 2012, respectively	14	14
Additional paid-in capital	374,914	373,605
Accumulated deficit	(275,523)	(270,311)
Total stockholders' equity	99,405	103,308
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	$ 163,060	$ 142,910