CONDENSED CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 5,923	$ 6,535
Accounts receivable, net of allowances of $1,379 and $1,459	187,151	190,079
Inventories	70,251	68,942
Prepaid expenses and other current assets	11,316	14,028
Deferred income taxes	2,901	3,004
Total current assets	277,542	282,588
Property and equipment, net	48,121	48,180
Deferred income taxes	419	380
Goodwill	25,510	25,510
Intangible assets, net	6,574	7,098
Other assets	7,344	1,979
Total assets	365,510	365,735
Current liabilities:
Accounts payable	117,506	102,972
Accrued expenses and other current liabilities	27,105	30,371
Deferred revenue	3,892	5,411
Line of credit	75,555	87,630
Notes payable - current	1,022	812
Total current liabilities	225,080	227,196
Notes payable and other long-term liabilities	18,097	16,750
Deferred income taxes	5,677	5,678
Total liabilities	248,854	249,624
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.001 par value; 5,000,000 shares authorized; none issued and outstanding
Common stock, $0.001 par value; 30,000,000 shares authorized; 14,715,238 and 14,560,801 shares issued; and 11,461,752 and 11,525,459 shares outstanding, respectively	15	14
Additional paid-in capital	113,051	111,952
Treasury stock, at cost: 3,253,486 and 3,035,342 shares, respectively	(15,246)	(13,688)
Accumulated other comprehensive income	2,278	2,511
Retained earnings	16,558	15,322
Total stockholders' equity	116,656	116,111
Total liabilities and stockholders' equity	$ 365,510	$ 365,735