CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net income	$ 1,992	$ 885
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,905	1,716
Provision for bad debts	(1)	5
Stock compensation expense-restricted stock	102	68
Changes in operating assets and liabilities:
Accounts receivable, gross	2,133	1,243
Inventory	(80)	138
Prepaid expenses and other	(342)	(294)
Long-term assets	41	(68)
Accounts payable	(1,503)	(2,499)
Accrued expenses, accrued salaries and other	183	157
Long-term liabilities	(178)	(105)
Net cash provided by operating activities	4,252	1,246
Cash flows from investing activities:
Capital expenditures	(1,896)	(3,753)
Net change in noncurrent assets and liabilities	(9)
Net cash used in investing activities	(1,905)	(3,753)
Cash flows from financing activities:
Borrowings on equipment loan		1,800
Payments on equipment loan	(1,620)
Capital lease payments	(219)	(216)
Loan commitment fees	(131)	(37)
Net cash (used in) provided by financing activities	(1,970)	1,547
Net increase (decrease) in cash and cash equivalents	377	(960)
Cash and cash equivalents, beginning of period	4,005	3,283
Cash and cash equivalents, end of period	4,382	2,323
Supplemental cash flow disclosures:
Cash paid for interest	123	83
Non-cash investing and financing activities:
Capital lease for warehouse and computer equipment	89	862
Capital expenditures in accounts payable	$ 1,355	$ 216