CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
CASH FLOWS PROVIDED BY OPERATING ACTIVITIES:
Net income	$ 1,496	$ 778
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	1,544	1,496
Provision for losses on accounts receivable	821	678
Deferred and stock-based compensation	392	325
Deferred income taxes	801	417
Changes in operating assets and liabilities:
Accounts receivable	(2,467)	(1,282)
Inventories	(160)	(179)
Prepaid expenses	(361)	(116)
Other assets	13	17
Accounts payable and accrued expenses	665	(832)
Other	(6)	0
Net cash provided by operating activities	2,738	1,302
CASH FLOWS USED IN INVESTING ACTIVITIES:
Purchases of building, equipment and improvements	(988)	(1,127)
Net cash used in investing activities	(988)	(1,127)
CASH FLOWS PROVIDED BY (USED IN) FINANCING ACTIVITIES:
Proceeds from line of credit	0	9,090
Payments on line of credit	0	(8,130)
Purchase of common stock for incentive plan	0	(1,388)
Net proceeds from the exercise of stock options	29	0
Net cash provided by (used in) financing activities	29	(428)
INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS	1,779	(253)
CASH AND CASH EQUIVALENTS AT BEGINNING OF PERIOD	5,269	1,285
CASH AND CASH EQUIVALENTS AT END OF PERIOD	7,048	1,032
Cash paid for:
Interest	0	24
Income taxes	234	113
Supplemental noncash activities:
Asset additions and related obligations in payables	$ 252	$ 867