CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities
Net (loss) income	$ (18,760,000)	$ 6,702,000	$ 4,061,000
Adjustments to reconcile net (loss) income to net cash (used in) provided by operating activities:
Depreciation and amortization	1,568,000	1,105,000	820,000
Deferred income taxes	(467,000)	(716,000)	(870,000)
Share-based compensation expense	1,268,000	478,000
Increase (decrease) in accounts receivable allowances	10,000		(249,000)
Increase in valuation of private placement warrants liability	28,031,000	448,000	382,000
Loss on investment in joint venture	39,000
Loss on disposal of assets	72,000	111,000	6,000
Loss on debt extinguishment	270,000		485,000
(Increase) decrease in operating assets:
Accounts receivable	(5,260,000)	(7,957,000)	(12,992,000)
Inventories	(16,018,000)	(6,575,000)	(1,225,000)
Prepaid expenses and other assets	(1,785,000)	(535,000)	(237,000)
Increase (decrease) in operating liabilities:
Accounts payable	(3,687,000)	2,473,000	7,365,000
Accrued liabilities	2,763,000	924,000	1,609,000
Income taxes payable	(445,000)	510,000	(55,000)
Other noncurrent liabilities	(34,000)	91,000	(73,000)
Net cash used in operating activities	(12,435,000)	(2,941,000)	(973,000)
Cash flows from investing activities
Purchases of property, plant, equipment and other assets	(6,007,000)	(3,890,000)	(1,557,000)
Investment in joint venture	(500,000)
Increase in cash surrender value of life insurance	(7,000)	(8,000)	(13,000)
Net cash used in investing activities	(6,514,000)	(3,898,000)	(1,570,000)
Cash flows from financing activities
(Decrease) increase in cash overdraft		(3,780,000)	3,251,000
Proceeds from stock offering	36,750,000
Proceeds from issuance of preferred stock with warrants			18,000,000
Initial proceeds/advances from borrowings under revolving line of credit	38,995,000		18,338,000
Repayments of prior revolving line of credit	(38,945,000)		(21,633,000)
Proceeds from exercise of private placement warrants	4,412,000	178,000
Proceeds from long-term debt			43,000
Payments on long-term debt and capital lease obligations		(64,000)	(7,880,000)
Repurchase of common stock			(4,250,000)
Payment of withholding taxes from net settlement of share-based awards	(2,063,000)
Excess tax benefit from exercise of share-based awards	1,642,000
Cash paid for financing and transaction fees	(3,020,000)	(228,000)	(4,654,000)
Net cash provided by financing activities	24,712,000	7,382,000	2,543,000
Increase in cash	5,763,000	543,000
Cash at beginning of the year	543,000
Cash at end of the year	6,306,000	543,000
Supplemental disclosures of cash flow information
Cash paid for interest	660,000	912,000	1,163,000
Cash paid for income taxes	4,869,000	4,353,000	3,695,000
Supplemental disclosure of non-cash transactions
Unpaid property, plant, equipment and other assets	1,552,000	928,000	164,000
Fair value of private placement warrants exercised	7,172,000	52,000
Dividends			224,000
Common stock issued due to exercise of warrant			399,000
Noncurrent obligation [Member]
Cash flows from financing activities
Initial proceeds/advances from borrowings under revolving line of credit	74,841,000	72,062,000
Repayments of prior revolving line of credit	(87,900,000)	(65,035,000)
Current obligation [Member]
Cash flows from financing activities
Net change in revolving line of credit - current obligation		$ 4,249,000	$ 1,328,000