Goodwill and Intangible Assets - Schedule of Intangibles (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2017	Jan. 31, 2016
Intangible Assets, Net (Including Goodwill) [Abstract]
Gross Assets	$ 12,804	$ 12,827
Accumulated Amortization	5,807	4,672
Net Assets	$ 6,997	8,155
Minimum
Intangible Assets, Net (Including Goodwill) [Abstract]
Estimated Useful Life	1 year
Maximum
Intangible Assets, Net (Including Goodwill) [Abstract]
Estimated Useful Life	15 years
Client relationships
Intangible Assets, Net (Including Goodwill) [Abstract]
Gross Assets	$ 5,805	5,932
Accumulated Amortization	2,692	2,220
Net Assets	$ 3,113	$ 3,712
Client relationships | Minimum
Intangible Assets, Net (Including Goodwill) [Abstract]
Estimated Useful Life	5 years	10 years
Client relationships | Maximum
Intangible Assets, Net (Including Goodwill) [Abstract]
Estimated Useful Life	15 years	15 years
Trade name
Intangible Assets, Net (Including Goodwill) [Abstract]
Estimated Useful Life		1 year
Gross Assets		$ 26
Accumulated Amortization		26
Net Assets		0
Covenants not to compete
Intangible Assets, Net (Including Goodwill) [Abstract]
Gross Assets	$ 986	856
Accumulated Amortization	744	667
Net Assets	$ 242	$ 189
Covenants not to compete | Minimum
Intangible Assets, Net (Including Goodwill) [Abstract]
Estimated Useful Life	6 months	6 months
Covenants not to compete | Maximum
Intangible Assets, Net (Including Goodwill) [Abstract]
Estimated Useful Life	15 years	15 years
Supplier agreements
Intangible Assets, Net (Including Goodwill) [Abstract]
Estimated Useful Life	5 years	5 years
Gross Assets	$ 1,582	$ 1,582
Accumulated Amortization	1,411	1,094
Net Assets	$ 171	$ 488
License agreement
Intangible Assets, Net (Including Goodwill) [Abstract]
Estimated Useful Life	15 years	15 years
Gross Assets	$ 4,431	$ 4,431
Accumulated Amortization	960	665
Net Assets	$ 3,471	$ 3,766