CONSOLIDATED BALANCE SHEETS (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 7,289	$ 8,892
Accounts receivable, net of allowances of $410 and $426	187,575	199,604
Inventories	42,939	50,687
Prepaid expenses and other current assets	10,047	15,936
Deferred income taxes	4,857	3,922
Current assets of discontinued operations	429	26
Total current assets	253,136	279,067
Property and equipment, net	86,137	74,368
Goodwill	25,510	25,510
Intangible assets, net	4,587	4,673
Other assets	6,295	5,558
Non-current assets of discontinued operations		14
Total assets	375,665	389,190
Current liabilities:
Accounts payable	117,509	122,333
Accrued expenses and other current liabilities	24,716	26,107
Deferred revenue	3,891	10,089
Line of credit	49,240	52,795
Notes payable - current	4,091	3,741
Current liabilities of discontinued operations	486	577
Total current liabilities	199,933	215,642
Notes payable and other long-term liabilities	34,993	28,015
Deferred income taxes	12,167	12,217
Total liabilities	247,093	255,874
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; 15,789,497 and 15,758,714 shares issued; and 12,223,919 and 12,267,550 shares outstanding	16	16
Additional paid-in capital	121,270	120,915
Treasury stock, at cost: 3,565,578 and 3,491,164 shares	(18,192)	(17,472)
Accumulated other comprehensive income	117	941
Retained earnings	25,361	28,916
Total stockholders' equity	128,572	133,316
Total liabilities and stockholders' equity	$ 375,665	$ 389,190