CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Cash flows from operating activities:
Net income (loss)	$ 3,475	$ (1,540)
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	3,699	3,380
Provision for bad debts	49	43
Loss (gain) on disposal of fixed assets	4	(15)
Stock compensation expense-stock options		2
Stock compensation expense-restricted stock	164	39
Changes in operating assets and liabilities:
Accounts receivable, gross	(6,288)	(1,741)
Inventory	3	2,883
Prepaid expenses and other assets	(7)	116
Long-term assets	(68)	10
Accounts payable	2,275	1,649
Accrued expenses, accrued salaries and other	1,740	391
Long-term liabilities	(178)	532
Net cash provided by operating activities	4,868	5,749
Cash flows from investing activities:
Capital expenditures	(5,292)	(2,389)
Proceeds from disposition of assets	1	26
Net change in noncurrent assets and liabilities	(9)	(10)
Net cash used in investing activities	(5,300)	(2,373)
Cash flows from financing activities:
Net activity under line of credit
Borrowings on equipment loan	1,800
Payments on equipment loan	(180)
Capital lease payments	(429)	(314)
Contribution from noncontrolling interest		17
Loan commitment fees	(37)	(34)
Net cash provided by (used in) financing activities	1,154	(331)
Net increase in cash and cash equivalents	722	3,045
Cash and cash equivalents, beginning of period	3,283	238
Cash and cash equivalents, end of period	4,005	3,283
Supplemental cash flow disclosures:
Cash paid for interest	207	126
Cash paid for state income taxes	8	29
Non-cash investing and financing activities:
Capital lease obligation for computer and warehouse equipment purchased	862	451
Capital expenditures in accounts payable	$ 219	$ 345