Condensed Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 3,841	$ 3,772
Accounts receivable, net	44,977	37,338
Inventories	14,639	22,428
Prepaid expenses and other assets	3,279	3,145
Deferred income taxes	9,497	9,497
Total current assets	76,233	76,180
Property, plant and equipment, net	98,199	100,783
Goodwill and other intangibles	10,536	10,542
Other assets	897	652
Total assets	185,865	188,157
Current liabilities:
Accounts payable	12,864	14,891
Accrued expenses	24,275	23,295
Accrued warranty	8,500	9,000
Line of credit	3,000
Total current liabilities	48,639	47,186
Deferred income taxes	360	360
Non-current accrued warranty	27,587	31,812
Other long-term liabilities	2,164	2,183
Total liabilities	78,750	81,541
Stockholders' equity:
Preferred stock, $0.01 par value, 3,000,000 shares authorized; none issued and outstanding
Common stock, $0.01 par value, 80,000,000 shares authorized; 34,783,546 and 34,598,124 shares issued and 32,003,117 and 33,475,614 shares outstanding at September 30, 2014 and December 31, 2013, respectively	348	173
Additional paid-in capital	115,623	101,667
Retained earnings	66,144	29,776
Treasury stock, at cost, 2,780,429 and 1,122,510 shares at September 30, 2014 and December 31, 2013, respectively	(75,000)	(25,000)
Total stockholders' equity	107,115	106,616
Total liabilities and stockholders' equity	$ 185,865	$ 188,157