Condensed Statements of Operations and Comprehensive Income (Loss) (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Revenue	$ 12,670,032	$ 19,876,566
Cost of sales	24,309,136	16,274,495
Gross profit (loss)	(11,639,104)	3,602,071
Selling, general and administrative expenses	2,720,383	2,019,365
Income (loss) from operations	(14,359,487)	1,582,706
Interest expense	275,733	214,586
Income (loss) before provision for (benefit from) income taxes	(14,635,220)	1,368,120
Provision for (benefit from) income taxes	(5,415,000)	440,000
Net income (loss)	(9,220,220)	928,120
Other comprehensive income, net of tax -
Change in unrealized gain- interest rate swap	3,453	1,007
Comprehensive income (loss)	$ (9,216,767)	$ 929,127
Income (loss) per common share – basic (in dollars per share)	$ (1.07)	$ 0.11
Income (loss) per common share – diluted (in dollars per share)	$ (1.07)	$ 0.11
Shares used in computing income (loss) per common share:
Basic (in shares)	8,596,538	8,516,973
Diluted (in shares)	8,596,538	8,594,479