Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 15,583	$ 2,159
Accounts receivable, net	50,959	26,542
Inventories	14,963	17,521
Prepaid expenses and other assets	1,706	2,188
Income taxes receivable	809	435
Deferred income taxes	3,858	3,792
Total current assets	87,878	52,637
Property, plant, and equipment, net	100,955	104,425
Goodwill and other intangibles	10,546	10,550
Other assets	1,195	1,003
Total assets	200,574	168,615
Current liabilities:
Accounts payable	15,020	11,161
Accrued expenses	20,026	18,818
Accrued warranty	7,500	7,500
Line of credit		5,000
Total current liabilities	42,546	42,479
Deferred income taxes	7,073	7,353
Non-current accrued warranty	17,747	21,487
Other long-term liabilities	2,402	3,310
Total liabilities	69,768	74,629
Stockholders' equity:
Preferred stock, $0.01 par value, 3,000,000 shares authorized; none issued and outstanding
Common stock, $0.01 par value, 40,000,000 shares authorized; 17,222,232 and 17,010,493 shares issued and outstanding at June 30, 2013 and December 31, 2012, respectively	172	170
Additional paid-in capital	100,663	98,638
Retained earnings (deficit)	29,971	(4,822)
Total stockholders' equity	130,806	93,986
Total liabilities and stockholders' equity	$ 200,574	$ 168,615