Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Segment Information
Net sales	$ 339,054	$ 337,169
Gross profit	50,627	46,954
Depreciation and amortization expense	2,760	2,965
Operating profit	5,867	2,878
Total consolidated assets	372,111		434,822
Commercial
Segment Information
Net sales	252,121	251,368
Gross profit	41,534	37,896
Depreciation and amortization expense	612	1,045
Operating profit	17,658	14,767
Public Sector
Segment Information
Net sales	36,420	31,026
Gross profit	3,542	2,895
Depreciation and amortization expense	13	15
Operating profit	574	124
MacMall
Segment Information
Net sales	50,515	54,840
Gross profit	5,553	6,011
Depreciation and amortization expense	209	214
Operating profit	560	426
Corporate and Other
Segment Information
Net sales	(2)	(65)
Gross profit	(2)	152
Depreciation and amortization expense	1,926	1,691
Operating profit	$ (12,925)	$ (12,439)